// File: contracts/CSW.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title: Clown Shoes World
/// @author: manifold.xyz

import "./ERC721Creator.sol";

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 //
//    [size=9px][font=monospace][color=#808080]                                [/color][color=#707070],[/color][color=#636363],[/color][color=#595959]▄[/color][color=#515151]▄[/color][color=#4b4b4b]▄[/color][color=#474747]▄[/color][color=#434343]▄[/color][color=#434343]▄▄▄▄[/color][color=#494949]▄[/color][color=#4f4f4f]▄[/color][color=#575757]▄[/color][color=#606060]▄[/color][color=#6d6d6d],[/color]                                                                                                                                                                                                                                                                                                                                                                                                                 //
//    [color=#808080]                         [/color][color=#686868],[/color][color=#505050]▄[/color][color=#393939]▄[/color][color=#242424]█[/color][color=#121212]█[/color][color=#020202]█[/color][color=#000000]███[/color][color=#060606]█[/color][color=#0f0f0f]█[/color][color=#171717]█[/color][color=#1c1c1c]█[/color][color=#202020]█[/color][color=#222222]▀▀▀█[/color][color=#191919]█[/color][color=#121212]█[/color][color=#080808]█[/color][color=#010101]█[/color][color=#000000]███[/color][color=#0c0c0c]█[/color][color=#1f1f1f]█[/color][color=#333333]▄[/color][color=#4a4a4a]▄[/color][color=#616161]▄[/color]                                                                                                                                                                                              //
//    [color=#808080]                     [/color][color=#555555]▄[/color][color=#333333]▄[/color][color=#141414]█[/color][color=#010101]█[/color][color=#000000]█[/color][color=#070707]█[/color][color=#1e1e1e]█[/color][color=#353535]▀[/color][color=#4a4a4a]▀[/color][color=#5b5b5b]"                  [/color][color=#606060]`[/color][color=#4f4f4f]▀[/color][color=#3b3b3b]▀[/color][color=#242424]▀[/color][color=#0d0d0d]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#0c0c0c]█[/color][color=#2b2b2b]█[/color][color=#4b4b4b]▄[/color]                                                                                                                                                                                                                                                               //
//    [color=#808080]                 [/color][color=#696969],[/color][color=#3c3c3c]▄[/color][color=#131313]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#181818]█[/color][color=#3a3a3a]▀                                [/color][color=#434343]▀[/color][color=#212121]▀[/color][color=#030303]█[/color][color=#000000]█[/color][color=#090909]█[/color][color=#313131]▄[/color][color=#5c5c5c]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                     //
//    [color=#808080]               [/color][color=#3e3e3e]▄[/color][color=#0d0d0d]█[/color][color=#000000]█[/color][color=#050505]█[/color][color=#2e2e2e]▀                                        [/color][color=#393939]▀[/color][color=#0d0d0d]█[/color][color=#000000]█[/color][color=#040404]█[/color][color=#303030]▄[/color][color=#646464],[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                       //
//    [color=#808080]            [/color][color=#5f5f5f]▄[/color][color=#212121]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#262626]▀[/color][color=#5b5b5b]"                                             [/color][color=#353535]▀[/color][color=#050505]█[/color][color=#000000]█[/color][color=#121212]█[/color][color=#4e4e4e]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                     //
//    [color=#808080]          [/color][color=#5c5c5c]▄[/color][color=#161616]█[/color][color=#000000]█[/color][color=#050505]█[/color][color=#3d3d3d]▀                                                  [/color][color=#4f4f4f]▀[/color][color=#101010]█[/color][color=#000000]█[/color][color=#080808]█[/color][color=#484848]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          //
//    [color=#808080]        [/color][color=#6e6e6e],[/color][color=#1e1e1e]█[/color][color=#000000]█[/color][color=#030303]█[/color][color=#404040]▀                                                      [/color][color=#555555]▀[/color][color=#0d0d0d]█[/color][color=#000000]██[/color][color=#595959]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               //
//    [color=#808080]       [/color][color=#414141]▄[/color][color=#010101]█[/color][color=#000000]█[/color][color=#292929]▀                                                          [/color][color=#424242]▀[/color][color=#010101]█[/color][color=#000000]█[/color][color=#272727]█[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     //
//    [color=#808080]      [/color][color=#1d1d1d]█[/color][color=#000000]█[/color][color=#040404]█[/color][color=#575757]▀                                                             [/color][color=#121212]█[/color][color=#000000]█[/color][color=#0a0a0a]█[/color][color=#686868]⌐[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   //
//    [color=#808080]     [/color][color=#0d0d0d]█[/color][color=#000000]██                                 [/color][color=#6e6e6e], [/color][color=#686868],[/color][color=#3c3c3c]▄                           [/color][color=#262626]▀[/color][color=#000000]█[/color][color=#020202]█[/color][color=#5c5c5c]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           //
//    [color=#808080]    [/color][color=#0c0c0c]█[/color][color=#000000]█[/color][color=#101010]█                    [/color][color=#6b6b6b],         [/color][color=#6c6c6c],[/color][color=#595959]▄[/color][color=#2e2e2e]█[/color][color=#010101]█[/color][color=#000000]████                            [/color][color=#2c2c2c]▀██[/color][color=#606060]▄[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                            //
//    [color=#808080]   [/color][color=#171717]█[/color][color=#000000]█[/color][color=#060606]█                   [/color][color=#5d5d5d]▄█[/color][color=#000000]█[/color][color=#010101]████[/color][color=#3d3d3d]▌ [/color][color=#202020]█[/color][color=#070707]█[/color][color=#000000]█[/color][color=#000000]█████████[/color][color=#333333]▄[/color][color=#616161]▄          [/color][color=#616161]▄[/color][color=#474747]▄[/color][color=#383838]▄[/color][color=#343434]▄[/color][color=#424242]▄[/color][color=#565656]▄          [/color][color=#1d1d1d]█[/color][color=#000000]█[/color][color=#040404]█[/color]                                                                                                                                                                                               //
//    [color=#808080]  [/color][color=#424242]▐[/color][color=#000000]█[/color][color=#000000]█[/color][color=#5f5f5f]`                   ███████[/color][color=#1f1f1f]█ [/color][color=#1f1f1f]█[/color][color=#000000]█[/color][color=#000000]████████████[/color][color=#060606]█[/color][color=#4f4f4f]▄     [/color][color=#5e5e5e]▄[/color][color=#2b2b2b]█[/color][color=#020202]█[/color][color=#000000]███████[/color][color=#323232]▄         [/color][color=#040404]█[/color][color=#000000]█[/color][color=#1a1a1a]█[/color]                                                                                                                                                                                                                                                                                          //
//    [color=#808080]  [/color][color=#030303]█[/color][color=#000000]█[/color][color=#202020]█                   [/color][color=#111111]█[/color][color=#000000]█[/color][color=#000000]███████ [/color][color=#4b4b4b]▐████████████████[/color][color=#090909]█[/color][color=#232323]█[/color][color=#1e1e1e]█[/color][color=#030303]█[/color][color=#000000]███████████[/color][color=#131313]█        [/color][color=#4c4c4c]▐[/color][color=#000000]█[/color][color=#000000]█[/color][color=#606060]⌐[/color]                                                                                                                                                                                                                                                                                                                //
//    [color=#808080] [/color][color=#494949]▐[/color][color=#000000]█[/color][color=#000000]█                  [/color][color=#676767]╒[/color][color=#060606]█[/color][color=#000000]█[/color][color=#000000]████████[/color][color=#090909]█[/color][color=#0e0e0e]█[/color][color=#000000]█[/color][color=#000000]███████████████████████████████[/color][color=#353535]▌        ██[/color][color=#1e1e1e]█[/color]                                                                                                                                                                                                                                                                                                                                                                                                            //
//    [color=#808080] █[/color][color=#000000]█[/color][color=#010101]█                 [/color][color=#686868],██████████████████████████████████████████████[/color][color=#5b5b5b]▄       [/color][color=#222222]█[/color][color=#000000]█[/color][color=#020202]█[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      //
//    [color=#808080] [/color][color=#0b0b0b]█[/color][color=#000000]█[/color][color=#101010]█           [/color][color=#717171],[/color][color=#525252]▄[/color][color=#393939]▄[/color][color=#2a2a2a]█[/color][color=#1b1b1b]█[/color][color=#1b1b1b]██[/color][color=#020202]█[/color][color=#000000]█████████████████████████████████████████████[/color][color=#080808]█       [/color][color=#3b3b3b]▐[/color][color=#000000]█[/color][color=#000000]█[/color]                                                                                                                                                                                                                                                                                                                                                              //
//    [color=#808080] [/color][color=#0a0a0a]█[/color][color=#000000]█[/color][color=#141414]█         [/color][color=#5a5a5a]▄[/color][color=#2b2b2b]█[/color][color=#000000]█[/color][color=#000000]████████████████[/color][color=#080808]█[/color][color=#292929]▀[/color][color=#0f0f0f]█[/color][color=#000000]█[/color][color=#000000]█████[/color][color=#040404]█[/color][color=#0b0b0b]█[/color][color=#090909]█[/color][color=#050505]█[/color][color=#000000]█[/color][color=#000000]█████████████████████[/color][color=#121212]█        [/color][color=#3f3f3f]▐[/color][color=#000000]█[/color][color=#000000]█[/color]                                                                                                                                                                                             //
//    [color=#808080] [/color][color=#121212]█[/color][color=#000000]█[/color][color=#080808]█        [/color][color=#313131]█[/color][color=#000000]█[/color][color=#000000]█████████████████[/color][color=#212121]▌    [/color][color=#666666]-[/color][color=#5f5f5f]`[/color][color=#5f5f5f]`-        [/color][color=#4c4c4c]▀[/color][color=#353535]▀[/color][color=#181818]█[/color][color=#040404]█[/color][color=#000000]█[/color][color=#000000]██████████[/color][color=#0c0c0c]█[/color][color=#262626]▀[/color][color=#464646]▀          [/color][color=#313131]█[/color][color=#000000]█[/color][color=#000000]█[/color]                                                                                                                                                                                             //
//    [color=#808080] [/color][color=#323232]▐[/color][color=#000000]█[/color][color=#000000]█       [/color][color=#5d5d5d]▐███████████████████[/color][color=#202020]█                       [/color][color=#686868]`[/color][color=#676767]-`                  [/color][color=#0e0e0e]█[/color][color=#000000]██[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        //
//    [color=#808080] [/color][color=#696969]-[/color][color=#000000]█[/color][color=#000000]█[/color][color=#434343]▌      [/color][color=#3b3b3b]▐[/color][color=#000000]█[/color][color=#000000]███████████████████                                           [/color][color=#6d6d6d]]██[/color][color=#3d3d3d]▌[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        //
//    [color=#808080]  [/color][color=#181818]█[/color][color=#000000]█[/color][color=#050505]█      [/color][color=#585858]▐[/color][color=#000000]█[/color][color=#000000]███████████████████                                           [/color][color=#202020]███[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       //
//    [color=#808080]   [/color][color=#010101]█[/color][color=#000000]█[/color][color=#2a2a2a]▌     [/color][color=#4d4d4d]▐[/color][color=#000000]█[/color][color=#000000]██████████████████[/color][color=#1b1b1b]█                                          [/color][color=#545454]▐[/color][color=#000000]█[/color][color=#000000]█[/color][color=#4c4c4c]▌[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                           //
//    [color=#808080]   [/color][color=#4f4f4f]▐[/color][color=#000000]█[/color][color=#000000]█[/color][color=#454545]▄    [/color][color=#676767]J[/color][color=#000000]█[/color][color=#000000]█████████████████[/color][color=#2e2e2e]▀                                          [/color][color=#676767]╒[/color][color=#020202]█[/color][color=#000000]█[/color][color=#272727]▌[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                     //
//    [color=#808080]    [/color][color=#414141]▀[/color][color=#000000]█[/color][color=#000000]█[/color][color=#464646]▄     [/color][color=#484848]▀[/color][color=#2c2c2c]▀[/color][color=#181818]█[/color][color=#080808]█[/color][color=#010101]█[/color][color=#000000]████████[/color][color=#131313]█[/color][color=#2a2a2a]▀[/color][color=#4b4b4b]▀                                           [/color][color=#656565],[/color][color=#040404]█[/color][color=#000000]█[/color][color=#1e1e1e]█[/color]                                                                                                                                                                                                                                                                                                                   //
//    [color=#808080]     [/color][color=#494949]▀[/color][color=#000000]█[/color][color=#000000]█[/color][color=#323232]▄                                                              [/color][color=#515151]▄[/color][color=#010101]█[/color][color=#000000]█[/color][color=#292929]▀[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   //
//    [color=#808080]       [/color][color=#080808]█[/color][color=#000000]█[/color][color=#141414]█                                                            [/color][color=#2b2b2b]█[/color][color=#000000]█[/color][color=#010101]█[/color][color=#464646]▀[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           //
//    [color=#808080]        [/color][color=#2d2d2d]▀[/color][color=#000000]█[/color][color=#010101]█[/color][color=#373737]▄                                                        [/color][color=#4e4e4e]▄[/color][color=#070707]█[/color][color=#000000]█[/color][color=#161616]█[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      //
//    [color=#808080]          █[/color][color=#000000]█[/color][color=#040404]█[/color][color=#404040]▄                                                    [/color][color=#535353]▄[/color][color=#101010]█[/color][color=#000000]█[/color][color=#090909]█[/color][color=#4f4f4f]▀[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       //
//    [color=#808080]           [/color][color=#5d5d5d]"[/color][color=#1a1a1a]█[/color][color=#000000]█[/color][color=#020202]█[/color][color=#333333]▄[/color][color=#6b6b6b],                                               [/color][color=#434343]▄[/color][color=#0a0a0a]█[/color][color=#000000]██[/color][color=#4a4a4a]▀[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           //
//    [color=#808080]             [/color][color=#696969]`[/color][color=#2f2f2f]▀[/color][color=#030303]█[/color][color=#000000]█[/color][color=#141414]█[/color][color=#454545]▄                                          [/color][color=#525252]▄[/color][color=#222222]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#202020]█[/color]                                                                                                                                                                                                                                                                                                                                                                                                                                                                       //
//    [color=#808080]                [/color][color=#535353]▀[/color][color=#242424]▀[/color][color=#020202]█[/color][color=#000000]█[/color][color=#111111]█[/color][color=#383838]▄[/color][color=#5c5c5c]▄                                  [/color][color=#676767],[/color][color=#434343]▄[/color][color=#1c1c1c]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#171717]█[/color][color=#454545]▀[/color]                                                                                                                                                                                                                                                                                                                                                                                                    //
//    [color=#808080]                    [/color][color=#343434]▀[/color][color=#101010]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#131313]█[/color][color=#2f2f2f]▄[/color][color=#4b4b4b]▄[/color][color=#636363],                        [/color][color=#696969],[/color][color=#525252]▄[/color][color=#373737]▄[/color][color=#1b1b1b]█[/color][color=#010101]█[/color][color=#000000]█[/color][color=#080808]█[/color][color=#2a2a2a]▀[/color][color=#505050]▀[/color]                                                                                                                                                                                                                                                                                                                                  //
//    [color=#808080]                       [/color][color=#5b5b5b]"[/color][color=#3f3f3f]▀[/color][color=#232323]▀[/color][color=#0c0c0c]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#040404]█[/color][color=#141414]█[/color][color=#262626]█[/color][color=#333333]▄[/color][color=#3f3f3f]▄[/color][color=#4b4b4b]▄[/color][color=#555555]▄[/color][color=#5c5c5c]▄[/color][color=#616161]▄[/color][color=#646464],[/color][color=#666666],,,▄[/color][color=#5d5d5d]▄[/color][color=#575757]▄[/color][color=#4e4e4e]▄[/color][color=#434343]▄[/color][color=#373737]▄[/color][color=#2a2a2a]█[/color][color=#191919]█[/color][color=#070707]█[/color][color=#000000]█[/color][color=#000000]█[/color][color=#060606]█[/color][color=#1d1d1d]█[/color][color=#373737]▀[/color][color=#535353]▀[/color]    //
//    [color=#808080]                              [/color][color=#474747]▀[/color][color=#393939]▀[/color][color=#2b2b2b]▀[/color][color=#1e1e1e]█[/color][color=#151515]█[/color][color=#0d0d0d]█[/color][color=#070707]█[/color][color=#030303]█[/color][color=#000000]██████[/color][color=#0b0b0b]█[/color][color=#121212]█[/color][color=#1b1b1b]█[/color][color=#282828]▀[/color][color=#353535]▀[/color][color=#434343]▀[/color][color=#535353]▀[/color][color=#676767]-[/color]                                                                                                                                                                                                                                                                                                                                           //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 //
//    [/font][/size]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 //
//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 //
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


contract CSW is ERC721Creator {
    constructor() ERC721Creator("Clown Shoes World", "CSW") {}
}

// File: contracts/ERC721Creator.sol




// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";

contract ERC721Creator is Proxy {
    
    constructor(string memory name, string memory symbol) {
        assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a;
        Address.functionDelegateCall(
            0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a,
            abi.encodeWithSignature("initialize(string,string)", name, symbol)
        );
    }
        
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation address.
     */
     function implementation() public view returns (address) {
        return _implementation();
    }

    function _implementation() internal override view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }    

}

// File: @openzeppelin/contracts/proxy/Proxy.sol



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

pragma solidity ^0.8.0;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internall call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }

    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overriden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}

// File: @openzeppelin/contracts/utils/Address.sol



// 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);
            }
        }
    }
}

// File: @openzeppelin/contracts/utils/StorageSlot.sol



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

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        assembly {
            r.slot := slot
        }
    }
}