Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

contract MECHADUCK is ERC721, EIP712, ERC721Enumerable, Pausable, AccessControl, ERC721Burnable {
    using Counters for Counters.Counter;
    using Strings for uint256;

    Counters.Counter private _tokenCounter;

    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

    string private constant BASE_URI = "https://ipfs.madworld.io/mechaduck/";
    ERC721 public constant FIRST_GEN_TOKEN = ERC721(0x71E7AFA8B3AB8e83011ce7bBBDCD76Ccd7cb0660);
    uint256 public constant INIT_TOKEN_ID =  100001221205000001;
    uint256 public constant MINT_LIMIT = 1;

    bytes32 public RARE_PROOF_ROOT = 0x478c46387efe3c9745d79886703ec5e1d978dfe6d42556a0dd388424a917e62b;
    mapping(uint256 => uint256) _mappingMintCount;

    struct Duck{
        uint256 id;
        bool isLegendary;
        bytes32[] proof;
    }

    struct Purchase{
        uint256 price;
        Duck[] ducks;
    }

    constructor() ERC721("MECHADUCK", "MECHADUCK") EIP712("MECHADUCK", "1") {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _grantRole(PAUSER_ROLE, msg.sender);
        _grantRole(MINTER_ROLE, msg.sender);
        _grantRole(MINTER_ROLE, address(0xd3A94F0630329Ab9096826cC96F203a6709e1744));
    }

    function _baseURI() internal pure override returns (string memory) {
        return BASE_URI;
    }

    function tokenURI(uint256 _tokenId)
        public
        view
        override
        returns (string memory)
    {
        require(
            _exists(_tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );

        return string(abi.encodePacked(BASE_URI, Strings.toString(_tokenId)));
    }

    function getMintCount(uint256 _duckId)
        public
        view
        returns (uint256)
    {
        require(
            FIRST_GEN_TOKEN.ownerOf(_duckId) != address(0),
            "MECHADUCK: Token 404"
        );

        return _mappingMintCount[_duckId];
    }

    function contractURI() public pure returns (string memory) {
        return string(abi.encodePacked(BASE_URI, "metadata.json"));
    }

    function pause() public onlyRole(PAUSER_ROLE) {
        _pause();
    }

    function unpause() public onlyRole(PAUSER_ROLE) {
        _unpause();
    }

    // Set Root for the rare bduck
    function setRoot(uint256 _root) onlyRole(MINTER_ROLE) public {
        RARE_PROOF_ROOT = bytes32(_root);
    }

    function buy(Purchase calldata data, uint8 v, bytes32 r, bytes32 s) external whenNotPaused {
        require(data.ducks.length == 2, "MECHADUCK: At least two ducks are required");

        bytes32 payloadHash = keccak256(abi.encode(keccak256("mint(address receiver, uint256 price, uint256 duck1, uint256 duck2, uint chainId)"), msg.sender, data.price, data.ducks[0].id, data.ducks[1].id, block.chainid));
        bytes32 digest = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", payloadHash));

        address addr = ecrecover(digest, v, r, s);
        require(hasRole(MINTER_ROLE, addr), "MECHADUCK: Invalid signer");


        for (uint256 index = 0; index < data.ducks.length; index++) {
            Duck memory duck = data.ducks[index];
            bytes32 leaf = keccak256(abi.encodePacked(duck.id));
            require(MerkleProof.verify(duck.proof, RARE_PROOF_ROOT, leaf), string(abi.encodePacked("BDUCKINGS: Not Rare ", duck.id.toString())) );
            require(FIRST_GEN_TOKEN.ownerOf(duck.id) == msg.sender, string(abi.encodePacked("MECHADUCK: Invalid Owner of NFT ", duck.id.toString())));
            require(_mappingMintCount[duck.id] < MINT_LIMIT,  string(abi.encodePacked("MECHADUCK: Reach Limit ", duck.id.toString())));
            _mappingMintCount[duck.id]++;
        }
        
        mintNew(msg.sender);
    }

    function safeMint(address to) public onlyRole(MINTER_ROLE) {
        mintNew(to);
    }


    function mintNew(address to) private {
        uint256 tokenId = INIT_TOKEN_ID + _tokenCounter.current();
        _tokenCounter.increment();
        _safeMint(to, tokenId);
    }

    function _beforeTokenTransfer(address from, address to, uint256 tokenId)
        internal
        whenNotPaused
        override(ERC721, ERC721Enumerable)
    {
        super._beforeTokenTransfer(from, to, tokenId);
    }

    // The following functions are overrides required by Solidity.

    function supportsInterface(bytes4 interfaceId)
        public
        view
        override(ERC721, ERC721Enumerable, AccessControl)
        returns (bool)
    {
        return super.supportsInterface(interfaceId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = _efficientHash(computedHash, proofElement);
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = _efficientHash(proofElement, computedHash);
            }
        }
        return computedHash;
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/draft-EIP712.sol)

pragma solidity ^0.8.0;

import "./ECDSA.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;
    address private immutable _CACHED_THIS;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;

    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = block.chainid;
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _CACHED_THIS = address(this);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "../../../utils/Context.sol";

/**
 * @title ERC721 Burnable Token
 * @dev ERC721 Token that can be irreversibly burned (destroyed).
 */
abstract contract ERC721Burnable is Context, ERC721 {
    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
        _burn(tokenId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(uint160(account), 20),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "./IERC721Enumerable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, _allowances[owner][spender] + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = _allowances[owner][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
        }
        _balances[to] += amount;

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Spend `amount` form the allowance of `owner` toward `spender`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"FIRST_GEN_TOKEN","outputs":[{"internalType":"contract ERC721","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"INIT_TOKEN_ID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINT_LIMIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PAUSER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"RARE_PROOF_ROOT","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"price","type":"uint256"},{"components":[{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"bool","name":"isLegendary","type":"bool"},{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"internalType":"struct MECHADUCK.Duck[]","name":"ducks","type":"tuple[]"}],"internalType":"struct MECHADUCK.Purchase","name":"data","type":"tuple"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"buy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_duckId","type":"uint256"}],"name":"getMintCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"safeMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_root","type":"uint256"}],"name":"setRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b50600436106102275760003560e01c8063572de73211610130578063a22cb465116100b8578063db09a3f51161007c578063db09a3f514610650578063e63ab1e914610680578063e8a3d4851461069e578063e985e9c5146106bc578063f2f5a7e5146106ec57610227565b8063a22cb465146105ae578063b88d4fde146105ca578063c87b56dd146105e6578063d539139314610616578063d547741f1461063457610227565b80638456cb59116100ff5780638456cb591461051a57806391d148541461052457806395d89b4114610554578063a089d04f14610572578063a217fddf1461059057610227565b8063572de7321461047e5780635c975abb1461049c5780636352211e146104ba57806370a08231146104ea57610227565b80632f2ff15d116101b357806340d097c31161018257806340d097c3146103de57806342842e0e146103fa57806342966c68146104165780634f6ccce7146104325780635568d86e1461046257610227565b80632f2ff15d1461036c5780632f745c591461038857806336568abe146103b85780633f4ba83a146103d457610227565b8063095ea7b3116101fa578063095ea7b3146102c857806316fa58a1146102e457806318160ddd1461030257806323b872dd14610320578063248a9ca31461033c57610227565b806301ffc9a71461022c578063027752401461025c57806306fdde031461027a578063081812fc14610298575b600080fd5b610246600480360381019061024191906137bc565b610708565b6040516102539190613fbc565b60405180910390f35b61026461071a565b60405161027191906143d5565b60405180910390f35b61028261071f565b60405161028f91906140b3565b60405180910390f35b6102b260048036038101906102ad9190613899565b6107b1565b6040516102bf9190613f55565b60405180910390f35b6102e260048036038101906102dd919061370f565b610836565b005b6102ec61094e565b6040516102f991906143d5565b60405180910390f35b61030a61095a565b60405161031791906143d5565b60405180910390f35b61033a600480360381019061033591906135f9565b610967565b005b6103566004803603810190610351919061374f565b6109c7565b6040516103639190613fd7565b60405180910390f35b6103866004803603810190610381919061377c565b6109e7565b005b6103a2600480360381019061039d919061370f565b610a10565b6040516103af91906143d5565b60405180910390f35b6103d260048036038101906103cd919061377c565b610ab5565b005b6103dc610b38565b005b6103f860048036038101906103f3919061355f565b610b75565b005b610414600480360381019061040f91906135f9565b610bb4565b005b610430600480360381019061042b9190613899565b610bd4565b005b61044c60048036038101906104479190613899565b610c30565b60405161045991906143d5565b60405180910390f35b61047c60048036038101906104779190613816565b610ca1565b005b610486611210565b6040516104939190613fd7565b60405180910390f35b6104a4611216565b6040516104b19190613fbc565b60405180910390f35b6104d460048036038101906104cf9190613899565b61122d565b6040516104e19190613f55565b60405180910390f35b61050460048036038101906104ff919061355f565b6112df565b60405161051191906143d5565b60405180910390f35b610522611397565b005b61053e6004803603810190610539919061377c565b6113d4565b60405161054b9190613fbc565b60405180910390f35b61055c61143f565b60405161056991906140b3565b60405180910390f35b61057a6114d1565b6040516105879190614098565b60405180910390f35b6105986114e9565b6040516105a59190613fd7565b60405180910390f35b6105c860048036038101906105c391906136cf565b6114f0565b005b6105e460048036038101906105df919061364c565b611506565b005b61060060048036038101906105fb9190613899565b611568565b60405161060d91906140b3565b60405180910390f35b61061e6115fb565b60405161062b9190613fd7565b60405180910390f35b61064e6004803603810190610649919061377c565b61161f565b005b61066a60048036038101906106659190613899565b611648565b60405161067791906143d5565b60405180910390f35b610688611770565b6040516106959190613fd7565b60405180910390f35b6106a6611794565b6040516106b391906140b3565b60405180910390f35b6106d660048036038101906106d191906135b9565b6117d3565b6040516106e39190613fbc565b60405180910390f35b61070660048036038101906107019190613899565b611867565b005b6000610713826118a7565b9050919050565b600181565b60606000805461072e90614795565b80601f016020809104026020016040519081016040528092919081815260200182805461075a90614795565b80156107a75780601f1061077c576101008083540402835291602001916107a7565b820191906000526020600020905b81548152906001019060200180831161078a57829003601f168201915b5050505050905090565b60006107bc82611921565b6107fb576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016107f2906142b5565b60405180910390fd5b6004600083815260200190815260200160002060009054906101000a900473ffffffffffffffffffffffffffffffffffffffff169050919050565b60006108418261122d565b90508073ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff1614156108b2576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016108a990614315565b60405180910390fd5b8073ffffffffffffffffffffffffffffffffffffffff166108d161198d565b73ffffffffffffffffffffffffffffffffffffffff16148061090057506108ff816108fa61198d565b6117d3565b5b61093f576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161093690614215565b60405180910390fd5b6109498383611995565b505050565b6701634694b3077f4181565b6000600880549050905090565b61097861097261198d565b82611a4e565b6109b7576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016109ae90614355565b60405180910390fd5b6109c2838383611b2c565b505050565b6000600b6000838152602001908152602001600020600101549050919050565b6109f0826109c7565b610a01816109fc61198d565b611d93565b610a0b8383611e30565b505050565b6000610a1b836112df565b8210610a5c576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610a5390614115565b60405180910390fd5b600660008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020600083815260200190815260200160002054905092915050565b610abd61198d565b73ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff1614610b2a576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610b21906143b5565b60405180910390fd5b610b348282611f11565b5050565b7f65d7a28e3265b37a6474929f336521b332c1681b933f6cb9f3376673440d862a610b6a81610b6561198d565b611d93565b610b72611ff3565b50565b7f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6610ba781610ba261198d565b611d93565b610bb082612095565b5050565b610bcf83838360405180602001604052806000815250611506565b505050565b610be5610bdf61198d565b82611a4e565b610c24576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610c1b90614395565b60405180910390fd5b610c2d816120ce565b50565b6000610c3a61095a565b8210610c7b576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610c7290614375565b60405180910390fd5b60088281548110610c8f57610c8e614942565b5b90600052602060002001549050919050565b610ca9611216565b15610ce9576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610ce0906141f5565b60405180910390fd5b6002848060200190610cfb91906143f0565b905014610d3d576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610d3490614335565b60405180910390fd5b60007f110e325ae79444bac762d6ce1659ccdaf6855a0645c8d74601fb2c8ffce45427338660000135878060200190610d7691906143f0565b6000818110610d8857610d87614942565b5b9050602002810190610d9a9190614453565b60000135888060200190610dae91906143f0565b6001818110610dc057610dbf614942565b5b9050602002810190610dd29190614453565b6000013546604051602001610dec96959493929190613ff2565b604051602081830303815290604052805190602001209050600081604051602001610e179190613e74565b604051602081830303815290604052805190602001209050600060018287878760405160008152602001604052604051610e549493929190614053565b6020604051602081039080840390855afa158015610e76573d6000803e3d6000fd5b505050602060405103519050610eac7f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6826113d4565b610eeb576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610ee290614275565b60405180910390fd5b60005b878060200190610efe91906143f0565b90508110156111fd576000888060200190610f1991906143f0565b83818110610f2a57610f29614942565b5b9050602002810190610f3c9190614453565b610f45906146f2565b905060008160000151604051602001610f5e9190613f3a565b604051602081830303815290604052805190602001209050610f878260400151600d54836121eb565b610f948360000151612202565b604051602001610fa49190613ebc565b60405160208183030381529060405290610ff4576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401610feb91906140b3565b60405180910390fd5b503373ffffffffffffffffffffffffffffffffffffffff167371e7afa8b3ab8e83011ce7bbbdcd76ccd7cb066073ffffffffffffffffffffffffffffffffffffffff16636352211e84600001516040518263ffffffff1660e01b815260040161105d91906143d5565b60206040518083038186803b15801561107557600080fd5b505afa158015611089573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906110ad919061358c565b73ffffffffffffffffffffffffffffffffffffffff16146110d18360000151612202565b6040516020016110e19190613f18565b60405160208183030381529060405290611131576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161112891906140b3565b60405180910390fd5b506001600e600084600001518152602001908152602001600020541061115a8360000151612202565b60405160200161116a9190613e9a565b604051602081830303815290604052906111ba576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016111b191906140b3565b60405180910390fd5b50600e60008360000151815260200190815260200160002060008154809291906111e3906147f8565b9190505550505080806111f5906147f8565b915050610eee565b5061120733612095565b50505050505050565b600d5481565b6000600a60009054906101000a900460ff16905090565b6000806002600084815260200190815260200160002060009054906101000a900473ffffffffffffffffffffffffffffffffffffffff169050600073ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff1614156112d6576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016112cd90614255565b60405180910390fd5b80915050919050565b60008073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415611350576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161134790614235565b60405180910390fd5b600360008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020549050919050565b7f65d7a28e3265b37a6474929f336521b332c1681b933f6cb9f3376673440d862a6113c9816113c461198d565b611d93565b6113d1612363565b50565b6000600b600084815260200190815260200160002060000160008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060009054906101000a900460ff16905092915050565b60606001805461144e90614795565b80601f016020809104026020016040519081016040528092919081815260200182805461147a90614795565b80156114c75780601f1061149c576101008083540402835291602001916114c7565b820191906000526020600020905b8154815290600101906020018083116114aa57829003601f168201915b5050505050905090565b7371e7afa8b3ab8e83011ce7bbbdcd76ccd7cb066081565b6000801b81565b6115026114fb61198d565b8383612406565b5050565b61151761151161198d565b83611a4e565b611556576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161154d90614355565b60405180910390fd5b61156284848484612573565b50505050565b606061157382611921565b6115b2576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016115a9906142f5565b60405180910390fd5b6040518060600160405280602381526020016151ca602391396115d483612202565b6040516020016115e5929190613e2e565b6040516020818303038152906040529050919050565b7f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a681565b611628826109c7565b6116398161163461198d565b611d93565b6116438383611f11565b505050565b60008073ffffffffffffffffffffffffffffffffffffffff167371e7afa8b3ab8e83011ce7bbbdcd76ccd7cb066073ffffffffffffffffffffffffffffffffffffffff16636352211e846040518263ffffffff1660e01b81526004016116ae91906143d5565b60206040518083038186803b1580156116c657600080fd5b505afa1580156116da573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906116fe919061358c565b73ffffffffffffffffffffffffffffffffffffffff161415611755576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161174c906142d5565b60405180910390fd5b600e6000838152602001908152602001600020549050919050565b7f65d7a28e3265b37a6474929f336521b332c1681b933f6cb9f3376673440d862a81565b60606040518060600160405280602381526020016151ca602391396040516020016117bf9190613e52565b604051602081830303815290604052905090565b6000600560008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060009054906101000a900460ff16905092915050565b7f9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a66118998161189461198d565b611d93565b8160001b600d819055505050565b60007f7965db0b000000000000000000000000000000000000000000000000000000007bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916827bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916148061191a5750611919826125cf565b5b9050919050565b60008073ffffffffffffffffffffffffffffffffffffffff166002600084815260200190815260200160002060009054906101000a900473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1614159050919050565b600033905090565b816004600083815260200190815260200160002060006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550808273ffffffffffffffffffffffffffffffffffffffff16611a088361122d565b73ffffffffffffffffffffffffffffffffffffffff167f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b92560405160405180910390a45050565b6000611a5982611921565b611a98576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401611a8f906141d5565b60405180910390fd5b6000611aa38361122d565b90508073ffffffffffffffffffffffffffffffffffffffff168473ffffffffffffffffffffffffffffffffffffffff161480611b1257508373ffffffffffffffffffffffffffffffffffffffff16611afa846107b1565b73ffffffffffffffffffffffffffffffffffffffff16145b80611b235750611b2281856117d3565b5b91505092915050565b8273ffffffffffffffffffffffffffffffffffffffff16611b4c8261122d565b73ffffffffffffffffffffffffffffffffffffffff1614611ba2576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401611b9990614155565b60405180910390fd5b600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415611c12576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401611c0990614195565b60405180910390fd5b611c1d838383612649565b611c28600082611995565b6001600360008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000206000828254611c789190614621565b925050819055506001600360008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff1681526020019081526020016000206000828254611ccf9190614540565b92505081905550816002600083815260200190815260200160002060006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550808273ffffffffffffffffffffffffffffffffffffffff168473ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a4611d8e8383836126a1565b505050565b611d9d82826113d4565b611e2c57611dc28173ffffffffffffffffffffffffffffffffffffffff1660146126a6565b611dd08360001c60206126a6565b604051602001611de1929190613ede565b6040516020818303038152906040526040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401611e2391906140b3565b60405180910390fd5b5050565b611e3a82826113d4565b611f0d576001600b600084815260200190815260200160002060000160008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060006101000a81548160ff021916908315150217905550611eb261198d565b73ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff16837f2f8788117e7eff1d82e926ec794901d17c78024a50270940304540a733656f0d60405160405180910390a45b5050565b611f1b82826113d4565b15611fef576000600b600084815260200190815260200160002060000160008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060006101000a81548160ff021916908315150217905550611f9461198d565b73ffffffffffffffffffffffffffffffffffffffff168173ffffffffffffffffffffffffffffffffffffffff16837ff6391f5c32d9c69d2a47ea670b442974b53935d1edc7fd64eb21e047a839171b60405160405180910390a45b5050565b611ffb611216565b61203a576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401612031906140f5565b60405180910390fd5b6000600a60006101000a81548160ff0219169083151502179055507f5db9ee0a495bf2e6ff9c91a7834c1ba4fdd244a5e8aa4e537bd38aeae4b073aa61207e61198d565b60405161208b9190613f55565b60405180910390a1565b60006120a1600c6128e2565b6701634694b3077f416120b49190614540565b90506120c0600c6128f0565b6120ca8282612906565b5050565b60006120d98261122d565b90506120e781600084612649565b6120f2600083611995565b6001600360008373ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008282546121429190614621565b925050819055506002600083815260200190815260200160002060006101000a81549073ffffffffffffffffffffffffffffffffffffffff021916905581600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a46121e7816000846126a1565b5050565b6000826121f88584612924565b1490509392505050565b6060600082141561224a576040518060400160405280600181526020017f3000000000000000000000000000000000000000000000000000000000000000815250905061235e565b600082905060005b6000821461227c578080612265906147f8565b915050600a826122759190614596565b9150612252565b60008167ffffffffffffffff81111561229857612297614971565b5b6040519080825280601f01601f1916602001820160405280156122ca5781602001600182028036833780820191505090505b5090505b60008514612357576001826122e39190614621565b9150600a856122f29190614855565b60306122fe9190614540565b60f81b81838151811061231457612313614942565b5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a905350600a856123509190614596565b94506122ce565b8093505050505b919050565b61236b611216565b156123ab576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016123a2906141f5565b60405180910390fd5b6001600a60006101000a81548160ff0219169083151502179055507f62e78cea01bee320cd4e420270b5ea74000d11b0c9f74754ebdbfc544b05a2586123ef61198d565b6040516123fc9190613f55565b60405180910390a1565b8173ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff161415612475576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161246c906141b5565b60405180910390fd5b80600560008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060006101000a81548160ff0219169083151502179055508173ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff167f17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31836040516125669190613fbc565b60405180910390a3505050565b61257e848484611b2c565b61258a84848484612999565b6125c9576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016125c090614135565b60405180910390fd5b50505050565b60007f780e9d63000000000000000000000000000000000000000000000000000000007bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916827bffffffffffffffffffffffffffffffffffffffffffffffffffffffff19161480612642575061264182612b30565b5b9050919050565b612651611216565b15612691576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401612688906141f5565b60405180910390fd5b61269c838383612c12565b505050565b505050565b6060600060028360026126b991906145c7565b6126c39190614540565b67ffffffffffffffff8111156126dc576126db614971565b5b6040519080825280601f01601f19166020018201604052801561270e5781602001600182028036833780820191505090505b5090507f30000000000000000000000000000000000000000000000000000000000000008160008151811061274657612745614942565b5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a9053507f7800000000000000000000000000000000000000000000000000000000000000816001815181106127aa576127a9614942565b5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a905350600060018460026127ea91906145c7565b6127f49190614540565b90505b6001811115612894577f3031323334353637383961626364656600000000000000000000000000000000600f86166010811061283657612835614942565b5b1a60f81b82828151811061284d5761284c614942565b5b60200101907effffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916908160001a905350600485901c94508061288d9061476b565b90506127f7565b50600084146128d8576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016128cf906140d5565b60405180910390fd5b8091505092915050565b600081600001549050919050565b6001816000016000828254019250508190555050565b612920828260405180602001604052806000815250612d26565b5050565b60008082905060005b845181101561298e57600085828151811061294b5761294a614942565b5b6020026020010151905080831161296d576129668382612d81565b925061297a565b6129778184612d81565b92505b508080612986906147f8565b91505061292d565b508091505092915050565b60006129ba8473ffffffffffffffffffffffffffffffffffffffff16612d98565b15612b23578373ffffffffffffffffffffffffffffffffffffffff1663150b7a026129e361198d565b8786866040518563ffffffff1660e01b8152600401612a059493929190613f70565b602060405180830381600087803b158015612a1f57600080fd5b505af1925050508015612a5057506040513d601f19601f82011682018060405250810190612a4d91906137e9565b60015b612ad3573d8060008114612a80576040519150601f19603f3d011682016040523d82523d6000602084013e612a85565b606091505b50600081511415612acb576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401612ac290614135565b60405180910390fd5b805181602001fd5b63150b7a0260e01b7bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916817bffffffffffffffffffffffffffffffffffffffffffffffffffffffff191614915050612b28565b600190505b949350505050565b60007f80ac58cd000000000000000000000000000000000000000000000000000000007bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916827bffffffffffffffffffffffffffffffffffffffffffffffffffffffff19161480612bfb57507f5b5e139f000000000000000000000000000000000000000000000000000000007bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916827bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916145b80612c0b5750612c0a82612dbb565b5b9050919050565b612c1d838383612e25565b600073ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff161415612c6057612c5b81612e2a565b612c9f565b8173ffffffffffffffffffffffffffffffffffffffff168373ffffffffffffffffffffffffffffffffffffffff1614612c9e57612c9d8382612e73565b5b5b600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff161415612ce257612cdd81612fe0565b612d21565b8273ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff1614612d2057612d1f82826130b1565b5b5b505050565b612d308383613130565b612d3d6000848484612999565b612d7c576040517f08c379a0000000000000000000000000000000000000000000000000000000008152600401612d7390614135565b60405180910390fd5b505050565b600082600052816020526040600020905092915050565b6000808273ffffffffffffffffffffffffffffffffffffffff163b119050919050565b60007f01ffc9a7000000000000000000000000000000000000000000000000000000007bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916827bffffffffffffffffffffffffffffffffffffffffffffffffffffffff1916149050919050565b505050565b6008805490506009600083815260200190815260200160002081905550600881908060018154018082558091505060019003906000526020600020016000909190919091505550565b60006001612e80846112df565b612e8a9190614621565b9050600060076000848152602001908152602001600020549050818114612f6f576000600660008673ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020600084815260200190815260200160002054905080600660008773ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020600084815260200190815260200160002081905550816007600083815260200190815260200160002081905550505b6007600084815260200190815260200160002060009055600660008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008381526020019081526020016000206000905550505050565b60006001600880549050612ff49190614621565b905060006009600084815260200190815260200160002054905060006008838154811061302457613023614942565b5b90600052602060002001549050806008838154811061304657613045614942565b5b90600052602060002001819055508160096000838152602001908152602001600020819055506009600085815260200190815260200160002060009055600880548061309557613094614913565b5b6001900381819060005260206000200160009055905550505050565b60006130bc836112df565b905081600660008573ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff168152602001908152602001600020600083815260200190815260200160002081905550806007600084815260200190815260200160002081905550505050565b600073ffffffffffffffffffffffffffffffffffffffff168273ffffffffffffffffffffffffffffffffffffffff1614156131a0576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040161319790614295565b60405180910390fd5b6131a981611921565b156131e9576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004016131e090614175565b60405180910390fd5b6131f560008383612649565b6001600360008473ffffffffffffffffffffffffffffffffffffffff1673ffffffffffffffffffffffffffffffffffffffff16815260200190815260200160002060008282546132459190614540565b92505081905550816002600083815260200190815260200160002060006101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550808273ffffffffffffffffffffffffffffffffffffffff16600073ffffffffffffffffffffffffffffffffffffffff167fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef60405160405180910390a4613306600083836126a1565b5050565b600061331d613318846144a0565b61447b565b905080838252602082019050828560208602820111156133405761333f6149be565b5b60005b8581101561337057816133568882613429565b845260208401935060208301925050600181019050613343565b5050509392505050565b600061338d613388846144cc565b61447b565b9050828152602081018484840111156133a9576133a86149c8565b5b6133b4848285614729565b509392505050565b6000813590506133cb8161513f565b92915050565b6000815190506133e08161513f565b92915050565b600082601f8301126133fb576133fa6149a0565b5b813561340b84826020860161330a565b91505092915050565b60008135905061342381615156565b92915050565b6000813590506134388161516d565b92915050565b60008135905061344d81615184565b92915050565b60008151905061346281615184565b92915050565b600082601f83011261347d5761347c6149a0565b5b813561348d84826020860161337a565b91505092915050565b6000606082840312156134ac576134ab6149af565b5b6134b6606061447b565b905060006134c684828501613535565b60008301525060206134da84828501613414565b602083015250604082013567ffffffffffffffff8111156134fe576134fd6149b9565b5b61350a848285016133e6565b60408301525092915050565b60006040828403121561352c5761352b6149aa565b5b81905092915050565b6000813590506135448161519b565b92915050565b600081359050613559816151b2565b92915050565b600060208284031215613575576135746149d2565b5b6000613583848285016133bc565b91505092915050565b6000602082840312156135a2576135a16149d2565b5b60006135b0848285016133d1565b91505092915050565b600080604083850312156135d0576135cf6149d2565b5b60006135de858286016133bc565b92505060206135ef858286016133bc565b9150509250929050565b600080600060608486031215613612576136116149d2565b5b6000613620868287016133bc565b9350506020613631868287016133bc565b925050604061364286828701613535565b9150509250925092565b60008060008060808587031215613666576136656149d2565b5b6000613674878288016133bc565b9450506020613685878288016133bc565b935050604061369687828801613535565b925050606085013567ffffffffffffffff8111156136b7576136b66149cd565b5b6136c387828801613468565b91505092959194509250565b600080604083850312156136e6576136e56149d2565b5b60006136f4858286016133bc565b925050602061370585828601613414565b9150509250929050565b60008060408385031215613726576137256149d2565b5b6000613734858286016133bc565b925050602061374585828601613535565b9150509250929050565b600060208284031215613765576137646149d2565b5b600061377384828501613429565b91505092915050565b60008060408385031215613793576137926149d2565b5b60006137a185828601613429565b92505060206137b2858286016133bc565b9150509250929050565b6000602082840312156137d2576137d16149d2565b5b60006137e08482850161343e565b91505092915050565b6000602082840312156137ff576137fe6149d2565b5b600061380d84828501613453565b91505092915050565b600080600080608085870312156138305761382f6149d2565b5b600085013567ffffffffffffffff81111561384e5761384d6149cd565b5b61385a87828801613516565b945050602061386b8782880161354a565b935050604061387c87828801613429565b925050606061388d87828801613429565b91505092959194509250565b6000602082840312156138af576138ae6149d2565b5b60006138bd84828501613535565b91505092915050565b6138cf81614655565b82525050565b6138de81614667565b82525050565b6138ed81614673565b82525050565b6139046138ff82614673565b614841565b82525050565b6000613915826144fd565b61391f8185614513565b935061392f818560208601614738565b613938816149d7565b840191505092915050565b61394c816146e0565b82525050565b600061395d82614508565b6139678185614524565b9350613977818560208601614738565b613980816149d7565b840191505092915050565b600061399682614508565b6139a08185614535565b93506139b0818560208601614738565b80840191505092915050565b60006139c9602083614524565b91506139d4826149e8565b602082019050919050565b60006139ec601483614524565b91506139f782614a11565b602082019050919050565b6000613a0f601c83614535565b9150613a1a82614a3a565b601c82019050919050565b6000613a32602b83614524565b9150613a3d82614a63565b604082019050919050565b6000613a55603283614524565b9150613a6082614ab2565b604082019050919050565b6000613a78602583614524565b9150613a8382614b01565b604082019050919050565b6000613a9b601c83614524565b9150613aa682614b50565b602082019050919050565b6000613abe602483614524565b9150613ac982614b79565b604082019050919050565b6000613ae1601983614524565b9150613aec82614bc8565b602082019050919050565b6000613b04601783614535565b9150613b0f82614bf1565b601782019050919050565b6000613b27602c83614524565b9150613b3282614c1a565b604082019050919050565b6000613b4a601083614524565b9150613b5582614c69565b602082019050919050565b6000613b6d603883614524565b9150613b7882614c92565b604082019050919050565b6000613b90602a83614524565b9150613b9b82614ce1565b604082019050919050565b6000613bb3602983614524565b9150613bbe82614d30565b604082019050919050565b6000613bd6601983614524565b9150613be182614d7f565b602082019050919050565b6000613bf9602083614524565b9150613c0482614da8565b602082019050919050565b6000613c1c601483614535565b9150613c2782614dd1565b601482019050919050565b6000613c3f602c83614524565b9150613c4a82614dfa565b604082019050919050565b6000613c62601483614524565b9150613c6d82614e49565b602082019050919050565b6000613c85602f83614524565b9150613c9082614e72565b604082019050919050565b6000613ca8602183614524565b9150613cb382614ec1565b604082019050919050565b6000613ccb602a83614524565b9150613cd682614f10565b604082019050919050565b6000613cee603183614524565b9150613cf982614f5f565b604082019050919050565b6000613d11602c83614524565b9150613d1c82614fae565b604082019050919050565b6000613d34601783614535565b9150613d3f82614ffd565b601782019050919050565b6000613d57602083614535565b9150613d6282615026565b602082019050919050565b6000613d7a603083614524565b9150613d858261504f565b604082019050919050565b6000613d9d600d83614535565b9150613da88261509e565b600d82019050919050565b6000613dc0601183614535565b9150613dcb826150c7565b601182019050919050565b6000613de3602f83614524565b9150613dee826150f0565b604082019050919050565b613e02816146c9565b82525050565b613e19613e14826146c9565b61484b565b82525050565b613e28816146d3565b82525050565b6000613e3a828561398b565b9150613e46828461398b565b91508190509392505050565b6000613e5e828461398b565b9150613e6982613d90565b915081905092915050565b6000613e7f82613a02565b9150613e8b82846138f3565b60208201915081905092915050565b6000613ea582613af7565b9150613eb1828461398b565b915081905092915050565b6000613ec782613c0f565b9150613ed3828461398b565b915081905092915050565b6000613ee982613d27565b9150613ef5828561398b565b9150613f0082613db3565b9150613f0c828461398b565b91508190509392505050565b6000613f2382613d4a565b9150613f2f828461398b565b915081905092915050565b6000613f468284613e08565b60208201915081905092915050565b6000602082019050613f6a60008301846138c6565b92915050565b6000608082019050613f8560008301876138c6565b613f9260208301866138c6565b613f9f6040830185613df9565b8181036060830152613fb1818461390a565b905095945050505050565b6000602082019050613fd160008301846138d5565b92915050565b6000602082019050613fec60008301846138e4565b92915050565b600060c08201905061400760008301896138e4565b61401460208301886138c6565b6140216040830187613df9565b61402e6060830186613df9565b61403b6080830185613df9565b61404860a0830184613df9565b979650505050505050565b600060808201905061406860008301876138e4565b6140756020830186613e1f565b61408260408301856138e4565b61408f60608301846138e4565b95945050505050565b60006020820190506140ad6000830184613943565b92915050565b600060208201905081810360008301526140cd8184613952565b905092915050565b600060208201905081810360008301526140ee816139bc565b9050919050565b6000602082019050818103600083015261410e816139df565b9050919050565b6000602082019050818103600083015261412e81613a25565b9050919050565b6000602082019050818103600083015261414e81613a48565b9050919050565b6000602082019050818103600083015261416e81613a6b565b9050919050565b6000602082019050818103600083015261418e81613a8e565b9050919050565b600060208201905081810360008301526141ae81613ab1565b9050919050565b600060208201905081810360008301526141ce81613ad4565b9050919050565b600060208201905081810360008301526141ee81613b1a565b9050919050565b6000602082019050818103600083015261420e81613b3d565b9050919050565b6000602082019050818103600083015261422e81613b60565b9050919050565b6000602082019050818103600083015261424e81613b83565b9050919050565b6000602082019050818103600083015261426e81613ba6565b9050919050565b6000602082019050818103600083015261428e81613bc9565b9050919050565b600060208201905081810360008301526142ae81613bec565b9050919050565b600060208201905081810360008301526142ce81613c32565b9050919050565b600060208201905081810360008301526142ee81613c55565b9050919050565b6000602082019050818103600083015261430e81613c78565b9050919050565b6000602082019050818103600083015261432e81613c9b565b9050919050565b6000602082019050818103600083015261434e81613cbe565b9050919050565b6000602082019050818103600083015261436e81613ce1565b9050919050565b6000602082019050818103600083015261438e81613d04565b9050919050565b600060208201905081810360008301526143ae81613d6d565b9050919050565b600060208201905081810360008301526143ce81613dd6565b9050919050565b60006020820190506143ea6000830184613df9565b92915050565b6000808335600160200384360303811261440d5761440c6149b4565b5b80840192508235915067ffffffffffffffff82111561442f5761442e6149a5565b5b60208301925060208202360383131561444b5761444a6149c3565b5b509250929050565b60008235600160600383360303811261446f5761446e6149b4565b5b80830191505092915050565b6000614485614496565b905061449182826147c7565b919050565b6000604051905090565b600067ffffffffffffffff8211156144bb576144ba614971565b5b602082029050602081019050919050565b600067ffffffffffffffff8211156144e7576144e6614971565b5b6144f0826149d7565b9050602081019050919050565b600081519050919050565b600081519050919050565b600082825260208201905092915050565b600082825260208201905092915050565b600081905092915050565b600061454b826146c9565b9150614556836146c9565b9250827fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0382111561458b5761458a614886565b5b828201905092915050565b60006145a1826146c9565b91506145ac836146c9565b9250826145bc576145bb6148b5565b5b828204905092915050565b60006145d2826146c9565b91506145dd836146c9565b9250817fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff048311821515161561461657614615614886565b5b828202905092915050565b600061462c826146c9565b9150614637836146c9565b92508282101561464a57614649614886565b5b828203905092915050565b6000614660826146a9565b9050919050565b60008115159050919050565b6000819050919050565b60007fffffffff0000000000000000000000000000000000000000000000000000000082169050919050565b600073ffffffffffffffffffffffffffffffffffffffff82169050919050565b6000819050919050565b600060ff82169050919050565b60006146eb82614705565b9050919050565b60006146fe3683613496565b9050919050565b600061471082614717565b9050919050565b6000614722826146a9565b9050919050565b82818337600083830152505050565b60005b8381101561475657808201518184015260208101905061473b565b83811115614765576000848401525b50505050565b6000614776826146c9565b9150600082141561478a57614789614886565b5b600182039050919050565b600060028204905060018216806147ad57607f821691505b602082108114156147c1576147c06148e4565b5b50919050565b6147d0826149d7565b810181811067ffffffffffffffff821117156147ef576147ee614971565b5b80604052505050565b6000614803826146c9565b91507fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff82141561483657614835614886565b5b600182019050919050565b6000819050919050565b6000819050919050565b6000614860826146c9565b915061486b836146c9565b92508261487b5761487a6148b5565b5b828206905092915050565b7f4e487b7100000000000000000000000000000000000000000000000000000000600052601160045260246000fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052601260045260246000fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052602260045260246000fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052603160045260246000fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052603260045260246000fd5b7f4e487b7100000000000000000000000000000000000000000000000000000000600052604160045260246000fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b600080fd5b6000601f19601f8301169050919050565b7f537472696e67733a20686578206c656e67746820696e73756666696369656e74600082015250565b7f5061757361626c653a206e6f7420706175736564000000000000000000000000600082015250565b7f19457468657265756d205369676e6564204d6573736167653a0a333200000000600082015250565b7f455243373231456e756d657261626c653a206f776e657220696e646578206f7560008201527f74206f6620626f756e6473000000000000000000000000000000000000000000602082015250565b7f4552433732313a207472616e7366657220746f206e6f6e20455243373231526560008201527f63656976657220696d706c656d656e7465720000000000000000000000000000602082015250565b7f4552433732313a207472616e736665722066726f6d20696e636f72726563742060008201527f6f776e6572000000000000000000000000000000000000000000000000000000602082015250565b7f4552433732313a20746f6b656e20616c7265616479206d696e74656400000000600082015250565b7f4552433732313a207472616e7366657220746f20746865207a65726f2061646460008201527f7265737300000000000000000000000000000000000000000000000000000000602082015250565b7f4552433732313a20617070726f766520746f2063616c6c657200000000000000600082015250565b7f4d454348414455434b3a205265616368204c696d697420000000000000000000600082015250565b7f4552433732313a206f70657261746f7220717565727920666f72206e6f6e657860008201527f697374656e7420746f6b656e0000000000000000000000000000000000000000602082015250565b7f5061757361626c653a2070617573656400000000000000000000000000000000600082015250565b7f4552433732313a20617070726f76652063616c6c6572206973206e6f74206f7760008201527f6e6572206e6f7220617070726f76656420666f7220616c6c0000000000000000602082015250565b7f4552433732313a2062616c616e636520717565727920666f7220746865207a6560008201527f726f206164647265737300000000000000000000000000000000000000000000602082015250565b7f4552433732313a206f776e657220717565727920666f72206e6f6e657869737460008201527f656e7420746f6b656e0000000000000000000000000000000000000000000000602082015250565b7f4d454348414455434b3a20496e76616c6964207369676e657200000000000000600082015250565b7f4552433732313a206d696e7420746f20746865207a65726f2061646472657373600082015250565b7f424455434b494e47533a204e6f74205261726520000000000000000000000000600082015250565b7f4552433732313a20617070726f76656420717565727920666f72206e6f6e657860008201527f697374656e7420746f6b656e0000000000000000000000000000000000000000602082015250565b7f4d454348414455434b3a20546f6b656e20343034000000000000000000000000600082015250565b7f4552433732314d657461646174613a2055524920717565727920666f72206e6f60008201527f6e6578697374656e7420746f6b656e0000000000000000000000000000000000602082015250565b7f4552433732313a20617070726f76616c20746f2063757272656e74206f776e6560008201527f7200000000000000000000000000000000000000000000000000000000000000602082015250565b7f4d454348414455434b3a204174206c656173742074776f206475636b7320617260008201527f6520726571756972656400000000000000000000000000000000000000000000602082015250565b7f4552433732313a207472616e736665722063616c6c6572206973206e6f74206f60008201527f776e6572206e6f7220617070726f766564000000000000000000000000000000602082015250565b7f455243373231456e756d657261626c653a20676c6f62616c20696e646578206f60008201527f7574206f6620626f756e64730000000000000000000000000000000000000000602082015250565b7f416363657373436f6e74726f6c3a206163636f756e7420000000000000000000600082015250565b7f4d454348414455434b3a20496e76616c6964204f776e6572206f66204e465420600082015250565b7f4552433732314275726e61626c653a2063616c6c6572206973206e6f74206f7760008201527f6e6572206e6f7220617070726f76656400000000000000000000000000000000602082015250565b7f6d657461646174612e6a736f6e00000000000000000000000000000000000000600082015250565b7f206973206d697373696e6720726f6c6520000000000000000000000000000000600082015250565b7f416363657373436f6e74726f6c3a2063616e206f6e6c792072656e6f756e636560008201527f20726f6c657320666f722073656c660000000000000000000000000000000000602082015250565b61514881614655565b811461515357600080fd5b50565b61515f81614667565b811461516a57600080fd5b50565b61517681614673565b811461518157600080fd5b50565b61518d8161467d565b811461519857600080fd5b50565b6151a4816146c9565b81146151af57600080fd5b50565b6151bb816146d3565b81146151c657600080fd5b5056fe68747470733a2f2f697066732e6d6164776f726c642e696f2f6d656368616475636b2fa264697066735822122089071facc2f40b2fb53c32cacd1b16ff3e2e5b9872cf3fde32deef1e8053f75064736f6c63430008070033