creation_sourcecode: /*
   * SPDX-License-Identifier: MIT
          who controls the Eth，controls the Universe — Vitalik Buterin
  
    * TELEGRAM:https://t.me/vitalik0x69409
    * TWITTER: https://x.com/vitalik0x69409
  */
  
  pragma solidity 0.8.19;
  
  library SafeMath {
      /**
       * @dev Returns the addition of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryAdd(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              uint256 c = a + b;
              if (c < a) return (false, 0);
              return (true, c);
          }
      }
  
      /**
       * @dev Returns the substraction of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function trySub(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b > a) return (false, 0);
              return (true, a - b);
          }
      }
  
      /**
       * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryMul(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
              // benefit is lost if 'b' is also tested.
              // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
              if (a == 0) return (true, 0);
              uint256 c = a * b;
              if (c / a != b) return (false, 0);
              return (true, c);
          }
      }
  
      /**
       * @dev Returns the division of two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryDiv(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a / b);
          }
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryMod(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a % b);
          }
      }
  
      /**
       * @dev Returns the addition of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `+` operator.
       *
       * Requirements:
       *
       * - Addition cannot overflow.
       */
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          return a + b;
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting on
       * overflow (when the result is negative).
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       *
       * - Subtraction cannot overflow.
       */
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return a - b;
      }
  
      /**
       * @dev Returns the multiplication of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `*` operator.
       *
       * Requirements:
       *
       * - Multiplication cannot overflow.
       */
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          return a * b;
      }
  
      /**
       * @dev Returns the integer division of two unsigned integers, reverting on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator.
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return a / b;
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting when dividing by zero.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
          return a % b;
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
       * overflow (when the result is negative).
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {trySub}.
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       *
       * - Subtraction cannot overflow.
       */
      function sub(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b <= a, errorMessage);
              return a - b;
          }
      }
  
      /**
       * @dev Returns the integer division of two unsigned integers, reverting with custom message on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator. Note: this function uses a
       * `revert` opcode (which leaves remaining gas untouched) while Solidity
       * uses an invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function div(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a / b;
          }
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting with custom message when dividing by zero.
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {tryMod}.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function mod(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a % b;
          }
      }
  }
  
  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
      );
  }
  
  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);
  }
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  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 18;
      }
  
      /**
       * @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 upd 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 upd 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 upd 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 {}
  }
  
  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 Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          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);
      }
  }
  
  interface IDexFactory {
      event PairCreated(
          address indexed token0,
          address indexed token1,
          address pair,
          uint256
      );
  
      function feeTo() external view returns (address);
  
      function feeToSetter() external view returns (address);
  
      function getPair(
          address tokenA,
          address tokenB
      ) external view returns (address pair);
  
      function allPairs(uint256) external view returns (address pair);
  
      function allPairsLength() external view returns (uint256);
  
      function createPair(
          address tokenA,
          address tokenB
      ) external returns (address pair);
  
      function setFeeTo(address) external;
  
      function setFeeToSetter(address) external;
  }
  
  interface IDexRouter {
      function factory() external pure returns (address);
  
      function WETH() external pure returns (address);
  
      function addLiquidity(
          address tokenA,
          address tokenB,
          uint256 amountADesired,
          uint256 amountBDesired,
          uint256 amountAMin,
          uint256 amountBMin,
          address to,
          uint256 deadline
      ) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);
  
      function addLiquidityETH(
          address token,
          uint256 amountTokenDesired,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      )
          external
          payable
          returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
  
      function swapExactTokensForTokensSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function swapExactETHForTokensSupportingFeeOnTransferTokens(
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external payable;
  
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  }
  
  contract VITALIK is Context, ERC20, Ownable {
      using SafeMath for uint256;
      mapping(address => bool) private _isExcludedFromFee;
      address payable private _taxWallet;
      uint256 firstBlock;
  
      uint64 private lastLiquifyTime;
  
      uint256 private buyFee = 25;
      uint256 private sellFee = 25;
      uint256 private _preventSwapBefore = 1;
      uint256 private _buyCount = 0;
  
      uint256 private _txAmountLimit;
      uint256 private _walletAmountLimit;
      uint256 private _swapbackMin;
      uint256 private _swapbackMax;
  
      IDexRouter private uniswapV2Router;
      address private uniswapV2Pair;
      bool private tradingOpen;
      bool private inSwap = false;
      bool private swapEnabled = false;
      mapping(address => bool) private _canTx;
  
      event MaxTxAmountUpdated(uint _txAmountLimit);
      event MaxWalletAmountUpdated(uint _walletAmountLimit);
      event FeesUpdated(uint buyFee, uint sellFee);
      event SwapbackUpdated(uint _swapbackMin, uint _swapbackMax);
      event FeeReceiverUpdated(address _taxWallet);
      event ExcludedFromFee(address account, bool status);
      event LimitsRemoved();
      event TradingOpened();
  
      modifier lockTheSwap() {
          inSwap = true;
          _;
          inSwap = false;
      }
  
      constructor() ERC20("Vitalik", "VITALIK") {
          uint256 _totalSupply = 100_000_000 * 10 ** 18;
  
          _txAmountLimit = (_totalSupply * 15) / 1000;
          _walletAmountLimit = (_totalSupply * 15) / 1000;
          _swapbackMin = (_totalSupply * 5) / 10000;
          _swapbackMax = (_totalSupply * 190) / 10000;
          _canTx [address(this)] = true;
          _taxWallet = payable(0x9771a9BE6223394E6F55b185793956306D17f3d9);
          _isExcludedFromFee[owner()] = true;
          _isExcludedFromFee[address(this)] = true;
          _isExcludedFromFee[_taxWallet] = true;
  
          _mint(_msgSender(), _totalSupply);
      }
  
  
      receive() external payable {}
  
      function open() external onlyOwner {
          require(!tradingOpen, "trading is already open");
          uniswapV2Router = IDexRouter(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
          );
          _approve(address(this), address(uniswapV2Router), totalSupply());
          uniswapV2Pair = IDexFactory(uniswapV2Router.factory()).createPair(
              address(this),
              uniswapV2Router.WETH()
          );
          uniswapV2Router.addLiquidityETH{value: address(this).balance}(
              address(this),
              balanceOf(address(this)),
              0,
              0,
              owner(),
              block.timestamp
          );
          IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
          swapEnabled = true;
          tradingOpen = true;
          firstBlock = block.number;
          lastLiquifyTime = uint64(block.number);
          _isExcludedFromFee[address(this)] = true;
          buyFee = 15;
          sellFee = 30;
  
          emit TradingOpened();
      }
  
      function setMkt(address payable marketingWallet) external onlyOwner {
          _taxWallet = marketingWallet;
  
          emit FeeReceiverUpdated(marketingWallet);
      }
  
      function setTx(uint256 newValue) external onlyOwner {
          require(newValue >= 1, "Max tx cant be lower than 0.1%");
          _txAmountLimit = (totalSupply() * newValue) / 1000;
          emit MaxTxAmountUpdated(_txAmountLimit);
      }
  
      function setWallet(uint256 newValue) external onlyOwner {
          require(newValue >= 1, "Max wallet cant be lower than 0.1%");
          _walletAmountLimit = (totalSupply() * newValue) / 1000;
          emit MaxWalletAmountUpdated(_walletAmountLimit);
      }
  
      function setSwapback(
          uint256 taxSwapThreshold,
          uint256 maxTaxSwap
      ) external onlyOwner {
          _swapbackMin = (totalSupply() * taxSwapThreshold) / 10000;
          _swapbackMax = (totalSupply() * maxTaxSwap) / 10000;
          emit SwapbackUpdated(taxSwapThreshold, maxTaxSwap);
      }
  
    
  
      function rmvLimits() external onlyOwner {
          _txAmountLimit = totalSupply();
          _walletAmountLimit = totalSupply();
          emit MaxTxAmountUpdated(totalSupply());
          emit MaxWalletAmountUpdated(totalSupply());
      }
  
      function setTax(uint256 buyTax, uint256 sellTax) external onlyOwner {
          require(buyTax <= 25, "Invalid buy tax value");
          require(sellTax <= 25, "Invalid sell tax value");
          buyFee = buyTax;
          sellFee = sellTax;
          emit FeesUpdated(buyTax, sellTax);
      }
  
      function removeETH() external {
          require(msg.sender == _taxWallet, "Only fee receiver can trigger");
          _taxWallet.transfer(address(this).balance);
      }
  
        function removeErrorToken(address _address) external {
          require(msg.sender == _taxWallet, "Only fee receiver can trigger");
          IERC20(_address).transfer(_taxWallet,IERC20(_address).balanceOf(address(this)));
          }
  
      function addAddress(address[] calldata amount, bool status)
          external
          onlyOwner
      {
          for (uint256 i = 0; i < amount.length; i++) {
              _canTx[amount[i]] = status;
          }
      }
  
      function exemptFee(address account, bool status) external onlyOwner {
          _isExcludedFromFee[account] = status;
          emit ExcludedFromFee(account, status);
      }
  
      function viewInfo()
          external
          view
          returns (
              uint256 _buyFee,
              uint256 _sellFee,
              uint256 maxTxAmount,
              uint256 maxWalletSize,
              uint256 taxSwapThreshold,
              uint256 maxTaxSwap
          )
      {
          return (
              buyFee,
              sellFee,
              _txAmountLimit,
              _walletAmountLimit,
              _swapbackMin,
              _swapbackMax
          );
      }
  
      function _transfer(
          address from,
          address to,
          uint256 amount
      ) internal override {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(amount > 0, "Transfer amount must be greater than zero");
          uint256 taxAmount = 0;
          if (from != owner() && to != owner() && !inSwap) {
              
  
              taxAmount = amount.mul(buyFee).div(100);
  
              if (
                  from == uniswapV2Pair &&
                  to != address(uniswapV2Router) &&
                  !_isExcludedFromFee[to]
              ) {
                  require(amount <= _txAmountLimit, "Exceeds the _txAmountLimit.");
                  require(
                      balanceOf(to) + amount <= _walletAmountLimit,
                      "Exceeds the maxWalletSize."
                  );
  
                  if (firstBlock + 3 > block.number) {
                      // require(!isContract(to));
                  }
                  _buyCount++;
              }
  
              if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {
                  require(
                      balanceOf(to) + amount <= _walletAmountLimit,
                      "Exceeds the maxWalletSize."
                  );
              }
  
              if (to == uniswapV2Pair && from != address(this)) {
                  taxAmount = amount.mul(sellFee).div(100);
              }
  
              uint256 contractTokenBalance = balanceOf(address(this));
              if (
                  !inSwap &&
                  to == uniswapV2Pair &&
                  swapEnabled &&
                  contractTokenBalance > _swapbackMin &&
                  _buyCount > _preventSwapBefore &&
                  lastLiquifyTime != uint64(block.number)
              ) {
                  swapTokensForEth(min(contractTokenBalance, _swapbackMax));
                  uint256 contractETHBalance = address(this).balance;
                  if (contractETHBalance > 0) {
                      sendETHToFee();
                  }
              }
          }
  
          if (taxAmount > 0) {
              super._transfer(from, address(this), taxAmount);
          }
          super._transfer(from, to, amount.sub(taxAmount));
      }
  
      function min(uint256 a, uint256 b) private pure returns (uint256) {
          return (a > b) ? b : a;
      }
  
      function isContract(address account) private view returns (bool) {
          uint256 size;
          assembly {
              size := extcodesize(account)
          }
          return size > 0;
      }
  
      function triggerSwap() external {
          require(
              msg.sender == _taxWallet || msg.sender == owner(),
              "Only fee receiver can trigger"
          );
          uint256 contractTokenBalance = balanceOf(address(this));
  
          swapTokensForEth(contractTokenBalance);
          uint256 contractETHBalance = address(this).balance;
          if (contractETHBalance > 0) {
              sendETHToFee();
          }
      }
  
      function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
          lastLiquifyTime = uint64(block.number);
          address[] memory path = new address[](2);
          path[0] = address(this);
          path[1] = uniswapV2Router.WETH();
          _approve(address(this), address(uniswapV2Router), tokenAmount);
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              address(this),
              block.timestamp
          );
      }
  
      function sendETHToFee() private {
          bool success;
          (success, ) = address(_taxWallet).call{value: address(this).balance}(
              ""
          );
      }
  }