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• interface IERC165
•    - function supportsInterface(bytes4 int ...
• interface IERC721 is IERC165
•    - function balanceOf(address owner)
•    - function ownerOf(uint256 tokenId)
•    - function safeTransferFrom(address fro ...
•    - function transferFrom(address from, a ...
•    - function approve(address to, uint256 ...
•    - function getApproved(uint256 tokenId)
•    - function setApprovalForAll(address op ...
•    - function isApprovedForAll(address own ...
•    - function safeTransferFrom(address fro ...
• interface ERC20
•    - function balanceOf(address who)
•    - function transfer(address to, uint256 ...
•    - function transferFrom(address from, a ...
•  contract Coin98MultiSend *
•    - function transferMultiNFTs(address[] ...
•    - function transferMulti(address payabl ...
•    - function transferMultiToken(address t ...
•    - function getTotalSendingAmount(uint25 ...

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/**
 *Submitted for verification at Etherscan.io on 2023-07-10
*/

// SPDX-License-Identifier: MIT
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);
}


// File: contracts/interfaces/IERC721.sol



pragma solidity >=0.7.6 <0.9.0;


/**
 * @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;
}

interface ERC20 {
    function balanceOf(address who) external view returns (uint256);
    function transfer(address to, uint256 value) external;
    function transferFrom(address from, address to, uint256 value) external;
}

contract Coin98MultiSend {
    // Transfer multi NFTs
    function transferMultiNFTs(address[] calldata tokenAddress, uint256[] calldata tokenID, address[] calldata receivers) public {
        require(receivers.length != 0 && receivers.length == tokenAddress.length && receivers.length == tokenID.length);

        for (uint i = 0; i < receivers.length; i++) {
             IERC721 meta = IERC721(tokenAddress[i]);
             meta.transferFrom(msg.sender, receivers[i],tokenID[i]);
        }
    }

    // Transfer multi ETH
    function transferMulti(address payable [] calldata receivers, uint256[] calldata amounts) public payable {
        require(msg.value > 0 && msg.value == getTotalSendingAmount(amounts));
        for (uint256 i = 0; i < amounts.length; i++) {
            receivers[i].transfer(amounts[i]);
        }
    }
    
    // Transfer multi token ERC20
    function transferMultiToken(address tokenAddress, address[] calldata receivers, uint256[] calldata amounts) public {
        require(receivers.length == amounts.length && receivers.length != 0);
        ERC20 token = ERC20(tokenAddress);

        for (uint i = 0; i < receivers.length; i++) {
            require(amounts[i] > 0);
            token.transferFrom(msg.sender, receivers[i], amounts[i]);
        }
    }
    
    function getTotalSendingAmount(uint256[] calldata _amounts) private pure returns (uint totalSendingAmount) {
        for (uint i = 0; i < _amounts.length; i++) {
            require(_amounts[i] > 0);
            totalSendingAmount += _amounts[i];
        }
    }
}

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[{"inputs":[{"internalType":"address payable[]","name":"receivers","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"transferMulti","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"tokenAddress","type":"address[]"},{"internalType":"uint256[]","name":"tokenID","type":"uint256[]"},{"internalType":"address[]","name":"receivers","type":"address[]"}],"name":"transferMultiNFTs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"address[]","name":"receivers","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"transferMultiToken","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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