creation_sourcecode: // SPDX-License-Identifier: MIT
  
  
  pragma solidity ^0.8.9;
  
  abstract contract Context {
  	function _msgSender() internal view virtual returns (address) {
  		return msg.sender;
  	}
  
  	function _msgData() internal view virtual returns (bytes calldata) {
  		this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  		return msg.data;
  	}
  }
  
  interface IUniswapV2Pair {
  	event Approval(address indexed owner, address indexed spender, uint value);
  	event Transfer(address indexed from, address indexed to, uint value);
  
  	function name() external pure returns (string memory);
  	function symbol() external pure returns (string memory);
  	function decimals() external pure returns (uint8);
  	function totalSupply() external view returns (uint);
  	function balanceOf(address owner) external view returns (uint);
  	function allowance(address owner, address spender) external view returns (uint);
  
  	function approve(address spender, uint value) external returns (bool);
  	function transfer(address to, uint value) external returns (bool);
  	function transferFrom(address from, address to, uint value) external returns (bool);
  
  	function DOMAIN_SEPARATOR() external view returns (bytes32);
  	function PERMIT_TYPEHASH() external pure returns (bytes32);
  	function nonces(address owner) external view returns (uint);
  
  	function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
  
  	event Mint(address indexed sender, uint amount0, uint amount1);
  	event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
  	event Swap(address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to);
  	event Sync(uint112 reserve0, uint112 reserve1);
  
  	function MINIMUM_LIQUIDITY() external pure returns (uint);
  	function factory() external view returns (address);
  	function token0() external view returns (address);
  	function token1() external view returns (address);
  	function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
  	function price0CumulativeLast() external view returns (uint);
  	function price1CumulativeLast() external view returns (uint);
  	function kLast() external view returns (uint);
  
  	function mint(address to) external returns (uint liquidity);
  	function burn(address to) external returns (uint amount0, uint amount1);
  	function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
  	function skim(address to) external;
  	function sync() external;
  
  	function initialize(address, address) external;
  }
  
  interface IUniswapV2Factory {
  	event PairCreated(address indexed token0, address indexed token1, address pair, uint);
  
  	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(uint) external view returns (address pair);
  	function allPairsLength() external view returns (uint);
  
  	function createPair(address tokenA, address tokenB) external returns (address pair);
  
  	function setFeeTo(address) external;
  	function setFeeToSetter(address) external;
  }
  
  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);
  }
  
  contract ERC20 is Context, IERC20, IERC20Metadata {
  	using SafeMath for uint256;
  
  	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 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);
  		_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, 'ERC20: transfer amount exceeds allowance'));
  		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].add(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) {
  		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, 'ERC20: decreased allowance below zero'));
  		return true;
  	}
  
  	/**
  	 * @dev Moves tokens `amount` from `sender` to `recipient`.
  	 *
  	 * This is 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);
  
  		_balances[sender] = _balances[sender].sub(amount, 'ERC20: transfer amount exceeds balance');
  		_balances[recipient] = _balances[recipient].add(amount);
  		emit Transfer(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 = _totalSupply.add(amount);
  		_balances[account] = _balances[account].add(amount);
  		emit Transfer(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);
  
  		_balances[account] = _balances[account].sub(amount, 'ERC20: burn amount exceeds balance');
  		_totalSupply = _totalSupply.sub(amount);
  		emit Transfer(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 to 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 {}
  }
  
  library SafeMath {
  	/**
  	 * @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) {
  		uint256 c = a + b;
  		require(c >= a, 'SafeMath: addition overflow');
  
  		return c;
  	}
  
  	/**
  	 * @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 sub(a, b, 'SafeMath: subtraction overflow');
  	}
  
  	/**
  	 * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
  	 * overflow (when the result is negative).
  	 *
  	 * Counterpart to Solidity's `-` operator.
  	 *
  	 * Requirements:
  	 *
  	 * - Subtraction cannot overflow.
  	 */
  	function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
  		require(b <= a, errorMessage);
  		uint256 c = a - b;
  
  		return c;
  	}
  
  	/**
  	 * @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) {
  		// 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 0;
  		}
  
  		uint256 c = a * b;
  		require(c / a == b, 'SafeMath: multiplication overflow');
  
  		return c;
  	}
  
  	/**
  	 * @dev Returns the integer division of two unsigned integers. Reverts 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) internal pure returns (uint256) {
  		return div(a, b, 'SafeMath: division by zero');
  	}
  
  	/**
  	 * @dev Returns the integer division of two unsigned integers. Reverts 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) {
  		require(b > 0, errorMessage);
  		uint256 c = a / b;
  		// assert(a == b * c + a % b); // There is no case in which this doesn't hold
  
  		return c;
  	}
  
  	/**
  	 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  	 * Reverts 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 mod(a, b, 'SafeMath: modulo by zero');
  	}
  
  	/**
  	 * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  	 * Reverts with custom message 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, string memory errorMessage) internal pure returns (uint256) {
  		require(b != 0, errorMessage);
  		return a % b;
  	}
  }
  
  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() {
  		address msgSender = _msgSender();
  		_owner = msgSender;
  		emit OwnershipTransferred(address(0), msgSender);
  	}
  
  	/**
  	 * @dev Returns the address of the current owner.
  	 */
  	function owner() public view 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 {
  		emit OwnershipTransferred(_owner, address(0));
  		_owner = 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');
  		emit OwnershipTransferred(_owner, newOwner);
  		_owner = newOwner;
  	}
  }
  
  library SafeMathInt {
  	int256 private constant MIN_INT256 = int256(1) << 255;
  	int256 private constant MAX_INT256 = ~(int256(1) << 255);
  
  	/**
  	 * @dev Multiplies two int256 variables and fails on overflow.
  	 */
  	function mul(int256 a, int256 b) internal pure returns (int256) {
  		int256 c = a * b;
  
  		// Detect overflow when multiplying MIN_INT256 with -1
  		require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
  		require((b == 0) || (c / b == a));
  		return c;
  	}
  
  	/**
  	 * @dev Division of two int256 variables and fails on overflow.
  	 */
  	function div(int256 a, int256 b) internal pure returns (int256) {
  		// Prevent overflow when dividing MIN_INT256 by -1
  		require(b != -1 || a != MIN_INT256);
  
  		// Solidity already throws when dividing by 0.
  		return a / b;
  	}
  
  	/**
  	 * @dev Subtracts two int256 variables and fails on overflow.
  	 */
  	function sub(int256 a, int256 b) internal pure returns (int256) {
  		int256 c = a - b;
  		require((b >= 0 && c <= a) || (b < 0 && c > a));
  		return c;
  	}
  
  	/**
  	 * @dev Adds two int256 variables and fails on overflow.
  	 */
  	function add(int256 a, int256 b) internal pure returns (int256) {
  		int256 c = a + b;
  		require((b >= 0 && c >= a) || (b < 0 && c < a));
  		return c;
  	}
  
  	/**
  	 * @dev Converts to absolute value, and fails on overflow.
  	 */
  	function abs(int256 a) internal pure returns (int256) {
  		require(a != MIN_INT256);
  		return a < 0 ? -a : a;
  	}
  
  	function toUint256Safe(int256 a) internal pure returns (uint256) {
  		require(a >= 0);
  		return uint256(a);
  	}
  }
  
  library SafeMathUint {
  	function toInt256Safe(uint256 a) internal pure returns (int256) {
  		int256 b = int256(a);
  		require(b >= 0);
  		return b;
  	}
  }
  
  interface IUniswapV2Router01 {
  	function factory() external pure returns (address);
  	function WETH() external pure returns (address);
  
  	function addLiquidity(address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline) external returns (uint amountA, uint amountB, uint liquidity);
  	function addLiquidityETH(address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
  	function removeLiquidity(address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline) external returns (uint amountA, uint amountB);
  	function removeLiquidityETH(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external returns (uint amountToken, uint amountETH);
  	function removeLiquidityWithPermit(address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) external returns (uint amountA, uint amountB);
  	function removeLiquidityETHWithPermit(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) external returns (uint amountToken, uint amountETH);
  	function swapExactTokensForTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts);
  	function swapTokensForExactTokens(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts);
  	function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts);
  	function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts);
  	function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts);
  	function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts);
  
  	function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
  	function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
  	function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
  	function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
  	function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
  }
  
  interface IUniswapV2Router02 is IUniswapV2Router01 {
  	function removeLiquidityETHSupportingFeeOnTransferTokens(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external returns (uint amountETH);
  	function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) external returns (uint amountETH);
  
  	function swapExactTokensForTokensSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
  	function swapExactETHForTokensSupportingFeeOnTransferTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable;
  	function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
  }
  
  contract Token is ERC20, Ownable {
  	using SafeMath for uint256;
  
  	IUniswapV2Router02 public immutable uniswapV2Router;
  	address public immutable uniswapV2Pair;
  	address public constant deadAddress = address(0xdead);
  
  	bool private swapping;
  
  	address public marketingWallet;
  	address public devWallet;
  	address public buyBackWallet;
  
  	uint256 public maxTransactionAmount;
  	uint256 public maxWallet;
  	uint8 private _decimals;
  
  	bool public limitsInEffect = true;
  	bool public tradingActive = false;
  	bool public swapEnabled = false;
  	bool public rescueSwap = false;
  
  	uint256 public tradingActiveBlock;
  
  	uint256 public buyTotalFees;
  	uint256 public buyMarketingFee;
  	uint256 public buyLiquidityFee;
  	uint256 public buyDevFee;
  	uint256 public buyBuyBackFee;
  
  	uint256 public sellTotalFees;
  	uint256 public sellMarketingFee;
  	uint256 public sellLiquidityFee;
  	uint256 public sellDevFee;
  	uint256 public sellBuyBackFee;
  
  	uint256 public tokensForMarketing;
  	uint256 public tokensForLiquidity;
  	uint256 public tokensForDev;
  	uint256 public tokensForBuyBack;
  
  	/******************/
  
  	// exlcude from fees and max transaction amount
  	mapping(address => bool) private _isExcludedFromFees;
  	mapping(address => bool) public _isExcludedMaxTransactionAmount;
  
  	// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
  	// could be subject to a maximum transfer amount
  	mapping(address => bool) public automatedMarketMakerPairs;
  
  	event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);
  
  	event ExcludeFromFees(address indexed account, bool isExcluded);
  
  	event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
  
  	event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet);
  
  	event devWalletUpdated(address indexed newWallet, address indexed oldWallet);
  
  	event buyBackWalletUpdated(address indexed newWallet, address indexed oldWallet);
  
  	event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiquidity);
  
  	event BuyBackTriggered(uint256 amount);
  
  	event OwnerForcedSwapBack(uint256 timestamp);
  
  	constructor() ERC20('HaiHai', 'HAIHAI') {
  		address _owner = _msgSender();
  
  		_decimals = 18;
  
  		uint256 totalSupply = 42069 * (10 ** 10) * (10 ** _decimals);
  
  		maxTransactionAmount = (totalSupply * 1) / 100; // 1% maxTransactionAmountTxn
  		maxWallet = (totalSupply * 1) / 100; // 1% maxWallet
  
  		buyMarketingFee = 0;
  		buyLiquidityFee = 0;
  		buyDevFee = 0;
  		buyBuyBackFee = 0;
  		buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee + buyBuyBackFee;
  
  		sellMarketingFee = 0;
  		sellLiquidityFee = 0;
  		sellDevFee = 0;
  		sellBuyBackFee = 0;
  		sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee + sellBuyBackFee;
  
  		marketingWallet = address(_owner); // set as marketing wallet
  		devWallet = address(_owner); // set as dev wallet
  		buyBackWallet = address(_owner); // set as buyBackWallet
  
  		address currentRouter;
  
  		//Adding Variables for all the routers for easier deployment for our customers.
  		if (block.chainid == 56) {
  			currentRouter = 0x10ED43C718714eb63d5aA57B78B54704E256024E; // PCS Router
  		} else if (block.chainid == 97) {
  			currentRouter = 0xD99D1c33F9fC3444f8101754aBC46c52416550D1; // PCS Testnet
  		} else if (block.chainid == 43114) {
  			currentRouter = 0x60aE616a2155Ee3d9A68541Ba4544862310933d4; //Avax Mainnet
  		} else if (block.chainid == 137) {
  			currentRouter = 0xa5E0829CaCEd8fFDD4De3c43696c57F7D7A678ff; //Polygon Ropsten
  		} else if (block.chainid == 250) {
  			currentRouter = 0xF491e7B69E4244ad4002BC14e878a34207E38c29; //SpookySwap FTM
  		} else if (block.chainid == 3) {
  			currentRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; //Ropsten
  		} else if (block.chainid == 1 || block.chainid == 4) {
  			currentRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; //Mainnet
  		} else {
  			revert();
  		}
  
  		//End of Router Variables.
  
  		IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(currentRouter);
  
  		excludeFromMaxTransaction(address(_uniswapV2Router), true);
  		uniswapV2Router = _uniswapV2Router;
  
  		uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
  		excludeFromMaxTransaction(address(uniswapV2Pair), true);
  		_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
  
  		// exclude from paying fees or having max transaction amount
  		excludeFromFees(_owner, true);
  		excludeFromFees(address(this), true);
  		excludeFromFees(address(0xdead), true);
  
  		excludeFromMaxTransaction(_owner, true);
  		excludeFromMaxTransaction(address(this), true);
  		excludeFromMaxTransaction(address(0xdead), true);
  
  		/*
              _mint is an internal function in ERC20.sol that is only called here,
              and CANNOT be called ever again
          */
  		_mint(_owner, totalSupply);
  		transferOwnership(_owner);
  	}
  
  	receive() external payable {}
  
  	// once enabled, can never be turned off
  	function enableTrading() external onlyOwner {
  		tradingActive = true;
  		swapEnabled = true;
  		tradingActiveBlock = block.number;
  	}
  
  	// remove limits after token is stable
  	function removeLimits() external onlyOwner returns (bool) {
  		limitsInEffect = false;
  		return true;
  	}
  
  	function airdropToWallets(address[] memory airdropWallets, uint256[] memory amounts) external onlyOwner returns (bool) {
  		require(!tradingActive, 'Trading is already active, cannot airdrop after launch.');
  		require(airdropWallets.length == amounts.length, 'arrays must be the same length');
  		require(airdropWallets.length < 200, 'Can only airdrop 200 wallets per txn due to gas limits'); // allows for airdrop + launch at the same exact time, reducing delays and reducing sniper input.
  		for (uint256 i = 0; i < airdropWallets.length; i++) {
  			address wallet = airdropWallets[i];
  			uint256 amount = amounts[i];
  			_transfer(msg.sender, wallet, amount);
  		}
  		return true;
  	}
  
  	function updateMaxAmount(uint256 newNum) external onlyOwner {
  		require(newNum >= ((totalSupply() * 1) / 100) / (10 ** _decimals), 'Cannot set maxTransactionAmount lower than 1%');
  		maxTransactionAmount = newNum * (10 ** _decimals);
  	}
  
  	function updateMaxWallet(uint256 newNum) external onlyOwner {
  		require(newNum >= ((totalSupply() * 1) / 100) / (10 ** _decimals), 'Cannot set maxTransactionAmount lower than 1%');
  		maxWallet = newNum * (10 ** _decimals);
  	}
  
  	function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
  		_isExcludedMaxTransactionAmount[updAds] = isEx;
  	}
  
  	function decimals() public view override returns (uint8) {
  		return _decimals;
  	}
  
  	// only use to disable contract sales if absolutely necessary (emergency use only)
  	function updateSwapEnabled(bool enabled) external onlyOwner {
  		swapEnabled = enabled;
  	}
  
  	// only use this to disable swapback and send tax in form of tokens
  	function updateRescueSwap(bool enabled) external onlyOwner {
  		rescueSwap = enabled;
  	}
  
  	function excludeFromFees(address account, bool excluded) public onlyOwner {
  		_isExcludedFromFees[account] = excluded;
  		emit ExcludeFromFees(account, excluded);
  	}
  
  	function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
  		require(pair != uniswapV2Pair, 'The pair cannot be removed from automatedMarketMakerPairs');
  
  		_setAutomatedMarketMakerPair(pair, value);
  	}
  
  	function _setAutomatedMarketMakerPair(address pair, bool value) private {
  		automatedMarketMakerPairs[pair] = value;
  
  		emit SetAutomatedMarketMakerPair(pair, value);
  	}
  
  	function updateMarketingWallet(address newMarketingWallet) external onlyOwner {
  		emit marketingWalletUpdated(newMarketingWallet, marketingWallet);
  		marketingWallet = newMarketingWallet;
  	}
  
  	function updateDevWallet(address newWallet) external onlyOwner {
  		emit devWalletUpdated(newWallet, devWallet);
  		devWallet = newWallet;
  	}
  
  	function updateBuyBackWallet(address newWallet) external onlyOwner {
  		emit buyBackWalletUpdated(newWallet, buyBackWallet);
  		buyBackWallet = newWallet;
  	}
  
  	function isExcludedFromFees(address account) external view returns (bool) {
  		return _isExcludedFromFees[account];
  	}
  
  	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');
  		if (!tradingActive) {
  			require(_isExcludedFromFees[from] || _isExcludedFromFees[to], 'Trading is not active.');
  		}
  		if (amount == 0) {
  			super._transfer(from, to, 0);
  			return;
  		}
  
  		if (limitsInEffect) {
  			if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !(_isExcludedFromFees[from] || _isExcludedFromFees[to]) && !swapping) {
  				//when buy
  				if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
  					require(amount <= maxTransactionAmount, 'Buy transfer amount exceeds the maxTransactionAmount.');
  					require(amount + balanceOf(to) <= maxWallet, 'Max wallet exceeded');
  				}
  				//when sell
  				else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
  					require(amount <= maxTransactionAmount, 'Sell transfer amount exceeds the maxTransactionAmount.');
  				} else {
  					require(amount + balanceOf(to) <= maxWallet, 'Max wallet exceeded');
  				}
  			}
  		}
  
  		uint256 contractTokenBalance = balanceOf(address(this));
  
  		bool canSwap = contractTokenBalance > 0;
  
  		if (canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
  			swapping = true;
  
  			swapBack();
  
  			swapping = false;
  		}
  
  		bool takeFee = !swapping;
  
  		// if any account belongs to _isExcludedFromFee account then remove the fee
  		if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
  			takeFee = false;
  		}
  
  		uint256 fees = 0;
  		// only take fees on buys/sells, do not take on wallet transfers
  		if (takeFee) {
  			if (automatedMarketMakerPairs[to]) {
  				if (sellTotalFees > 0) {
  					fees = amount.mul(sellTotalFees).div(100);
  					tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
  					tokensForDev += (fees * sellDevFee) / sellTotalFees;
  					tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
  					tokensForBuyBack += (fees * sellBuyBackFee) / sellTotalFees;
  				}
  			}
  			// on buy
  			else if (automatedMarketMakerPairs[from]) {
  				if (buyTotalFees > 0) {
  					fees = amount.mul(buyTotalFees).div(100);
  					tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;
  					tokensForDev += (fees * buyDevFee) / buyTotalFees;
  					tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
  					tokensForBuyBack += (fees * buyBuyBackFee) / buyTotalFees;
  				}
  			}
  
  			if (fees > 0) {
  				super._transfer(from, address(this), fees);
  			}
  
  			amount -= fees;
  		}
  
  		super._transfer(from, to, amount);
  	}
  
  	function swapTokensForEth(uint256 tokenAmount) private {
  		// generate the uniswap pair path of token -> weth
  		address[] memory path = new address[](2);
  		path[0] = address(this);
  		path[1] = uniswapV2Router.WETH();
  
  		_approve(address(this), address(uniswapV2Router), tokenAmount);
  
  		// make the swap
  		try
  			uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
  				tokenAmount,
  				0, // accept any amount of ETH
  				path,
  				address(this),
  				block.timestamp
  			)
  		{} catch {}
  	}
  
  	function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
  		// approve token transfer to cover all possible scenarios
  		_approve(address(this), address(uniswapV2Router), tokenAmount);
  
  		// add the liquidity
  		try
  			uniswapV2Router.addLiquidityETH{ value: ethAmount }(
  				address(this),
  				tokenAmount,
  				0, // slippage is unavoidable
  				0, // slippage is unavoidable
  				deadAddress,
  				block.timestamp
  			)
  		{} catch {}
  	}
  
  	function resetTaxAmount() public onlyOwner {
  		tokensForLiquidity = 0;
  		tokensForMarketing = 0;
  		tokensForDev = 0;
  		tokensForBuyBack = 0;
  	}
  
  	function swapBack() private {
  		uint256 contractBalance = balanceOf(address(this));
  
  		if (rescueSwap) {
  			if (contractBalance > 0) {
  				super._transfer(address(this), marketingWallet, contractBalance);
  			}
  			return;
  		}
  
  		uint256 totalTokensToSwap = tokensForLiquidity + tokensForMarketing + tokensForDev + tokensForBuyBack;
  		bool success;
  
  		if (contractBalance == 0 || totalTokensToSwap == 0) {
  			return;
  		}
  
  		// Halve the amount of liquidity tokens
  		uint256 liquidityTokens = (contractBalance * tokensForLiquidity) / totalTokensToSwap / 2;
  		uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
  
  		uint256 initialETHBalance = address(this).balance;
  
  		swapTokensForEth(amountToSwapForETH);
  
  		uint256 ethBalance = address(this).balance.sub(initialETHBalance);
  
  		uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);
  		uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);
  		uint256 ethForBuyBack = ethBalance.mul(tokensForBuyBack).div(totalTokensToSwap);
  
  		uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev - ethForBuyBack;
  
  		tokensForLiquidity = 0;
  		tokensForMarketing = 0;
  		tokensForDev = 0;
  		tokensForBuyBack = 0;
  
  		(success, ) = address(devWallet).call{ value: ethForDev }('');
  		(success, ) = address(buyBackWallet).call{ value: ethForBuyBack }('');
  
  		if (liquidityTokens > 0 && ethForLiquidity > 0) {
  			addLiquidity(liquidityTokens, ethForLiquidity);
  			emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity);
  		}
  
  		(success, ) = address(marketingWallet).call{ value: address(this).balance }('');
  	}
  }