White Monster

// SPDX-License-Identifier: MIT
/**

                            ......                                                                                                  
    ...',,;:::cccclllloddooooddooooddxdooollllllcc:;,'....                                                                          
    .ldoooddodxxxdollllldOOdlloddoollokOkolllloddxxdddddooddc.                                                                        
    .dkkkdlc:cccllllooooodxdodxkOkxxddxxdodooolllllcccloxOkkl.                                                                        
    .dOO0kdoodxxdxxdodxddxkkkkOOOOOOkkkxkkxooddololodooxO0OOl.                                                                        
    .lkO0KOxOOO0K000OxOOkkO000O0KKKK0OOOkOOkxxOOxkOkOOkxO0K0Ok:.                                                                       
,dkkOKKdokddOKkddd0OdxdkKXXN0kkkk0XOkKOk0xdxdOXOdOKxloOX0kxko'                                                                      
.cOOO0Kkox0ockXOlllk0okKddNWWWOodocxNkoXOoKkokooKk:lxkocd0X0kk0k;                                                                     
.l000KNN0k0Kkk0X00OkX0xkkx0WWWW0xkdokNKxkxxKXkxxxK0k0000000XNKOO00:                                                                    
;OKKXNXXXXNWWWWNNXXXXXNNNNWNNNNNNNNNWWWWNNNWNNNNNNXXNWWNNXXKKXXK00x.                                                                   
:0KXXX0O00KXXXXXXXKK000000KKXNWWWWWWWNNXXXXX000K0O00KKKKKK0kkOXNKKk'                                                                   
:KXXK0OxxO0000KKKXXXKK0000000KXNNNNNNXXKKK0OO00OOkkkkk000K0OO0XXXXk'                                                                   
:KXKK0OkkkO00KKXXKOOkOO0000000XXXXXXXXXXK0O0KK00kkO0KKXNXK0OOKXXXKk'                                                                   
:0KKK0000O00xxOOOkkkO0KKKK000KXXXNNNNXKKKKKKK0OOO00000KXXX0kOKXXXKx.                                                                   
;0KKKK0OOOOKkkKK0OkO00000KKKXXXNNXXXXXKKKXK00OxkKK000KXNNXO0KKKXXKx.                                                                   
;0KKKK0kOOKKkOKK0Ok0KXXXXXXKXXXXXXXXXXXXXKKKK00XXNNXNNNNNKO0X00XKKx.                                                                   
;OKKKKK00OO0O0KXXKKKKXKKKKKKXXNNNNXKXNNXKKKK0KNNNNNNNNNNNKO0X00K00x.                                                                   
;000KK0OOKKKXK0KOkkkO0KXXXXNXK0Oxl:;ck0KXKKKKNWNNNWNKKNNNXOkO00K00d.                                                                   
;O0KXK0OO00ko;,oOO0KXXXOdddc;;;::codoc:cokKXNWWNNKkl,,coOXXK000K00d.                                                                   
;OKX0d:,,;;,';c:;;:clc;',;::ldkkO00000Ox:.:OXWNN0c.,:c:;;dXNXKKKO0d.                                                                   
'kKX0o:;;codddkxdool'';cccldkO000KKKK000k:..;do:,,codddd:;kXXXK0O0d.                                                                   
'xKKXXKOxdlodxkxxxkk:cKX0kxc;dO00000000Oo.  .';cldkxddddo:dXXXX00Ko.                                                                   
'x0KK00KKXd,cxkxdxkx:dNNWWW0,'oO000000Oocllllcllolccodddd:oKXXX00Ko.                                                                   
.x0KK0KXXNk;;dkxddlloONNWWWXl.ck00000OllKWWWWXKKXKo.;oddolkXXXXK0Ko.                                                                   
.xKKK0KXNXXO::xxdcc0WNNWWWWO'.lk00000OcoXWNWWNNNNWk''lddloKXXXXK00o.                                                                   
.xKKXK0KNNX0c,odd:lXWNWWWWWXd;:dO0OOOOclXWWWNWWWNWk',ldll0X0KXXK00l.                                                                   
.kKKXK00KXK0c'oddc;dXWWWWWWWNd'ckOOOOOo:kNWWWNWNNNx.,locxXXK0KXK00l                                                                    
.kXXXX00K0KO;'odoo:dNWWWWWWWX:.lxOOOOOdcOWNNWWNNNNo.,lll0NXKOOK000l                                                                    
.xXXXXK0OO0o';ddl:oXNNWWWWWWNl'ckOOkkkd:kWNWWWNNNx,.:c:xNNNKkOKK00l                                                                    
.dXXXXNX0KKc'cddl;xNNNNWWWWWNd':xkkkkkkclXWWWWWWXd',ll;dNNNXK0KK00l                                                                    
.dKXXXX00K0:'lddo;lXWNWWWWWWNo.:dkkkkkd:oXWWWNWNW0;.cc;dXNNXKKXX00c                                                                    
.dKXXXXKK0Kk;:doo:cKWNWWWWWWW0:,okkkkx:cKWNWWWNNWk''cl:c0NNXK0KXK0:                                                                    
.oKXXXXNK0NNo,lool:xNWWWWNWWWNd':dxxxd:dNWWWNNWNWO,'clcoXNXXK00XKO:                                                                    
.o0KKXNK0XNW0:;oloccONNWWWWWWXc.cdxxxl:OWWWWWNWNNNx,;c:kNXXXX00KKO;                                                                    
.o0KKXXOOXNNNo,clooccONNWWWWW0;'lxxxxd:dNWWWNNWWNNXl.;:dXNX0000KKO;                                                                    
.oK0KKK000KXNk,;looc:ONWWWWWWXc'cdxxxxl:OWWWWWWNNNK:.:l:dKOxO0KKK0:                                                                    
.o00KKO00OKKXO,,loc:kNNWWWWWWW0;,oxxxdd:lXWWWWWNNW0;.coclOKKXXKKK0:                                                                    
.o00KK0OkOK0Kx',ll::0WNWWWWWWWNd':dxddo:oXWWWWWNNNXo';ocoKNXXXKKK0:                                                                    
.oK00KKOkOkxOk;'co::0WNWWWWWWWKc':oddl:xXWWWWWWWNNWO,'cckXXXXXXKKO;                                                                    
.l00KK0OkkOO0Xo.;lc:xNWWWWWWWNd.,ldxo;dNWWWWWWNNNNN0;':dXXXXXKKXX0;                                                                    
.lO000K0OOO0KXd',lo:cKWNWWWWWK:.:odo:lKWNXNNNNNNNNWO,.;dXXXX00KKKO;                                                                    
l000KKKOOO0XXo.,lc;xNNNWWWWNo.'loc,lKNXKKKKKK0OXNWk'';l0NXXKKXK0O,                                                                    
l00KKXX0O0XNx'.:c;lKWWWWWWNx'.:oo;'oNX00KNXK0OkKNWk.':oKNXXKKXXXO,                                                                    
l00KKKXX00XK:.;c:;kNNWWWWWK:.;loo;.lNXO0XXKK00KNNNd.':ONXXXKKKKKO,                                                                    
c00KKKXXK0KXO;,c;cKWNWWWWWNO;,coo;.oNN0OK0OXWNNNN0;.,;kXXXXK000Kk'                                                                    
:0KKKXNNK0KNK:.:;:0WNWWWWWWNo.;ll;.oNWXOO0O0XXXXNO,.::xK0K000K0Kk'                                                                    
:OKK0KXXK0XNNd.,:;dNNWWWWWWXc.;ll;.oNWWXO000KKKKXK;.,;kK00Ok0000x'                                                                    
:O0KXKKX0KNNNd.,:,dNNWWWWWWNo.,lc;:kWWWWNK000KKXKo.',;kKOkO0KK00x.                                                                    
:O0KXXK00XNNWK:';;kWNWWWWWWWO,.c::lOWWWWWWNNXKKX0;.;;:k0O000KKK0x.                                                                    
:OKKXXX00NNNNNd'';OWNWWWWWWW0,.:::d0WWWWWWWWNXKKXd.';o0KK0KXXKK0d.                                                                    
;O0KXXK00XNNNW0;.,kWNWWWWWWWO'.:;:d0WWWWWWWN00XXNx..cKNKkOXXKK00d.                                                                    
;k0KKKKKKXNNNWXc.;OWNWWWWWWWK;.:c;,lKWWWWWNOOXWNNl.,ONNKOKXXKK0Od.                                                                    
;O0KKK000KNNNNNo.,0WNWWWWWWWK:.,c:,,xNWWWWNXNWWNNd.oNNNXXXXK000Od.                                                                    
;O00KKK0kOKNNNWO'.kWNWWWWWWWk'.;c;.:0WWWWWWWWWNNNKOKNNNXXXX00KK0d.                                                                    
;k00KKXKOkOKXNNNd.lXWWWWWWWWNx,,:,.lXWWWWWWWWWNNNNNNNNNNXXKkOK00d.                                                                    
,k000KXXKkOX00KX0:cXWNWWWWWWWNd.',;xWWWWWWWWWNNNNNNNNNNXXKOxOK0Kx.                                                                    
,kO0KKXNNK0XN00XX0KNWWWWWWWWWWO,.:d0WWWWWWWWWWWWNNNNNNNKKOxxO00Kx.                                                                    
;k00K0KXNX00NNKKX0KNWWWWWWWWWWx..cOXWWWWWWWWNXKKNNNXXXXKOOOOOKKKx.                                                                    
,kKKX0OKNN0O0KXK00XWWWWWWWWWWXc.:0WWWWWWWWWNKOKKXXXK00KOOK0O0KKKd.                                                                    
'x0KXK0KNNKKXKKKXNNWWWWWWWWWWNkxXWWWWWWWWWWWNNNNNNKKK00KXXKKKKKKd.                                                                    
'kKKXKKXNNKKNNNNNNNNWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNNNXXKXXKKKo.                                                                    
'x0KXKKXNNKKNNNNNNWNWWWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNXXXXXK00o.                                                                    
'ld0KO0NNNXkkXWNNNWWWWWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNNXX0kxoxl.                                                                    
'llxx:o0xox:;ONNNNNWWWWWWKk0NWWWWWWWWWWWWWWWWWWWWNXNN0xddlxdclokc                                                                     
.ollkllO,.l;,olckXOodKNWW0;cXWWNNXKKOkOXNKkkkxodxockO;'ldokdlllkc                                                                     
.okx0ol0c,xl:0o.:Kx..,o0W0;lNWOc:lol::cx0ockk,.cKKO00,.lokXdlkllc                                                                     
.x00KllKO,,,cKo.oNk;ox:,cd;lNWKl,cdxdc,;xKNWX:.oNNNW0,,OKkdodOkd:                                                                     
.dO0KolKNk:.'c:c0Wx,xWNOl'.lNWWNKXNNO; 'kNWWK,.dNNNNO,'ldox000OOc                                                                     
.o0KK00X000:,xXNNNk:xNWWNO,cXWK0NWWXl.'kNWWWKl,xNNNNX0O0XXK00OOOc                                                                     
.dO0XXKK0KKxxXWNNWNXXWWWWNO0NN0olll:,l0WWWWWWNXXNNNNNNNNNXKOOOOk:                                                                     
.dOOKXKkkO0XNNNNNWWWWWWWWWWWWWWN0kxkKNWWWWWWWWNNNNNNNX000OkOO0Ok;                                                                     
.oO0KK0xox0NNXOOXX0KNWWNNXNNNNWWWWWWNNNNNNWWWNK0OOOKNX0xddkk00Ox;                                                                     
.oO0KK0Okk0NNKxdkkxONWWNOxkkOKNWWWNKkkkkkKWWWKxxxddONNNKkxkO0OOx;                                                                     
.d00KKKXNXXNNX00X0k0NWWNOxxxOKNWWWN0xkOxx0NWWKkkOOOXNNNXKO0000Ok;                                                                     
.o000KKXNNNNNNNNNNNNNWWNXKKKKXNWWWNXKNNXKXNNWNNNNNNNNNNX00KKK0Ok;                                                                     
.o0O0KKKNNNNNNNNNWNXNNNNWWWWWWWWWWWWWWWWWWWNNNNNNNNNNNNXKKXXK0Ox,                                                                     
.lkOKXXNNNNNNNNNNWKld0dkNkkNWXOxdxkK0ddoxXNk:lKWNNNNNNNNNXXXKOkx,                                                                     
.ck0KXXNNNNNNNNNNWXl:l;dXl;x0KKl;xKXx,,';Ok:::oKNNNNNNNNNXXK0Okd'                                                                     
:k0XXNNNNNNNNNNNWWXK00XN0kkkKWKOXWWKO00OKKKNNXNNNNNNNNNXXXK000x'                                                                     
,kKXXNNNNNNNNNNNWWWNWWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNNNK0KK0l.                                                                     
;kKXNNNNNNNNNNNNNNWWWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNNNXKX0o.                                                                      
    .;d0XNNNNNNNNNWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWNNNNNNNNNNXOl'                                                                        
    .:ok0KXNNWWNNWWWWWWWWWWWWWWWWWWWWWWWWWWNNWWNNNNXKOxl,.                                                                          
        .;ldxkO0KXNNNWWWWWWWWWWWWWWWWWWWWWNXXK0Okxoc,.                                                                              
            .',;:lodxxkkkOOOOOOOOOOOOOkkkkxxdoc:;,'.                                                                                 
                ...,;cloddxxkkkkkkkkxxdolc:,'..                                                                                      
                        ......'''......                                                                                              

Twitter: https://twitter.com/whitemonsterult
Telegram: https://t.me/whitemonsterult 
Website: whitemonster.energy

/**
pragma solidity ^0.8.15;

 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File @openzeppelin/contracts/token/ERC20/IERC20.sol@v4.4.0
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)

/**
 * @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);
}
// File @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol@v4.4.0
// OpenZeppelin Contracts v4.4.0 (token/ERC20/extensions/IERC20Metadata.sol)

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// File @openzeppelin/contracts/token/ERC20/ERC20.sol@v4.4.0
// OpenZeppelin Contracts v4.4.0 (token/ERC20/ERC20.sol)

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
pragma solidity ^0.8.15;
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 9;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}
// File contracts/wmster.sol
pragma solidity ^0.8.15;
contract WMSTER is ERC20, Ownable { 
    constructor() ERC20("White Monster", "WMSTER") {
        _mint(msg.sender, 1000000000000 * 10 ** decimals());
    } 
}

{
  "compilationTarget": {
    "WMSTER.sol": "WMSTER"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}