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/**
  ___ ___ ___ _______ ___    _______ _______ _______ _______ 
 |   Y   |   |   _   |   |  |   _   |   _   |   _   |   _   |
 |.  1   |.  |.  1___|.  |  |.  1   |.  1___|.  1   |.  1___|
 |.  _   |.  |.  __) |.  |  |.  ____|.  __)_|.  ____|.  __)_ 
 |:  |   |:  |:  |   |:  |  |:  |   |:  1   |:  |   |:  1   |
 |::.|:. |::.|::.|   |::.|  |::.|   |::.. . |::.|   |::.. . |
 `--- ---`---`---'   `---'  `---'   `-------`---'   `-------'
                                                             
*/
// SPDX-License-Identifier: MIT     
pragma solidity ^0.8.0;
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
pragma solidity ^0.8.0;
abstract contract Ownable is Context {
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