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pragma solidity 0.8.11;

// SPDX-License-Identifier: MIT

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @notice cBSN token burner - just approve the contract and then call burn to send the tokens into a black hole.
contract Burner {
    /// @notice Address of the cBSN token
    IERC20 public cBSN;

    /// @param _cBSN Address of cBSN token that will be burned
    constructor(IERC20 _cBSN) {
        cBSN = _cBSN;
    }

    /// @notice Burn `_amount` from `_owner` that has approved this contract
    /// @dev Tokens will be pulled in with no where to go
    /// @param _owner Address that has a cBSN balance and has approved this contract for transfer
    /// @param _amount Number of tokens that will be transferred into the contract and burned forever
    function burn(address _owner, uint256 _amount) external {
        cBSN.transferFrom(_owner, address(this), _amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
        address recipient,
        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);
}

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

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[{"inputs":[{"internalType":"contract IERC20","name":"_cBSN","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cBSN","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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

0000000000000000000000007d4b1d793239707445305d8d2456d2c735f6b25b

-----Decoded View---------------
Arg [0] : _cBSN (address): 0x7d4B1d793239707445305D8d2456D2c735F6B25B

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000007d4b1d793239707445305d8d2456d2c735f6b25b