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pragma solidity 0.4.26;
library SafeMath {
  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }
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/*
  ╗▄▄▄▄▄▄▄▄▄▄▄▄▄  ╓╥       _ _     ,▄      ,▄  ▄▄▄µ╓,,,,,╓╥▄▄▄  _ ▄─      ╓µ
  _█████████████⌐ ╫██µ _,▄▓███▌   ██▌     ███  ███████████████  ╫██⌐    ▐██▌
     ███     ▓██⌐ ╫██▌▓████▀╙__  _██▌    _███  ███_  ███__ ███  ╫██⌐    ╟██▌
 _,,,███,,,,,▓██⌐ ╫██████▄▄,     _██▌    _███  ███   ███   ███  ╫██⌐    ╟██▌
  ╙█████████████⌐ ╫██▌▀▀█████Q   _██▌    _███  ███   ███   ███  ╫██⌐    ╟██▌
   __███_    ▓██⌐ ╫██µ     ███▄  _██▌    _███  ███   ███   ███  ╫██⌐    ╟██▌
   ╓███▀     ▓██⌐ ╫██µ      ███  ╥███▄▄▄▄▄███_ ███   █▀▀   ███ .▓██▄▄▄▄▄▓██▌_
  ╙███─      ╙▀█⌐ ╫█▀       ╙██Γ ▓███████████╨ ╙██   _     ╙▀█_ ████████████
      █▀▄·█▀█·▄▀█·█▀▀·█▀█·█▄░█·▀█·  ·█░█·█▄░█·█▀▀·█░█·▄▀█·█·█▄░█·█▀▀·█▀▄
      █▄▀·█▀▄·█▀█·█▄█·█▄█·█░▀█·█▄· · █▄█·█░▀█·█▄▄·█▀█·█▀█·█·█░▀█·██▄·█▄▀
*/
// SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.9;
import { ERC721A } from "erc721a/contracts/ERC721A.sol";
import { SignatureChecker } from "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
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pragma solidity ^0.4.13;
contract Ownable {
  address public owner;
  event OwnershipRenounced(address indexed previousOwner);
  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );
  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
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contract OwnedUpgradeabilityStorage {
  // Current implementation
  address internal _implementation;
  // Owner of the contract
  address private _upgradeabilityOwner;
  /**
   * @dev Tells the address of the owner
   * @return the address of the owner
   */
  function upgradeabilityOwner() public view returns (address) {
    return _upgradeabilityOwner;
  }
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pragma solidity ^0.4.13;
contract Ownable {
  address public owner;
  event OwnershipRenounced(address indexed previousOwner);
  event OwnershipTransferred(
    address indexed previousOwner,
    address indexed newOwner
  );
  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
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pragma solidity 0.8.11;
interface IERC721 {
    function safeTransferFrom(address from, address to, uint256 tokenId) external;
    function transferFrom(address from, address to, uint256 tokenId) external;
}
interface IERC1155 {
    function safeTransferFrom(address from, address to, uint256 tokenId, uint256 amount, bytes calldata data) external;
}
/// @title MerkleValidator enables matching trait-based and collection-based orders for ERC721 and ERC1155 tokens.
/// @author 0age
/// @dev This contract is intended to be called during atomicMatch_ via DELEGATECALL.
contract MerkleValidator {
    /// @dev InvalidProof is thrown on invalid proofs.
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