/**
*Submitted for verification at BscScan.com on 2022-06-17
*/

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.0;

library SafeMath {

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);
}
}


function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}


function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {

if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}


function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}

function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}


function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a b;
}


function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}


function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}


function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}


function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}

function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}


function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}


function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}

abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}

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

abstract contract Pausable is Context {

event Paused(address account);

event Unpaused(address account);

bool private _paused;

constructor() {
_paused = false;
}


function paused() public view virtual returns (bool) {
return _paused;
}

modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}


modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}

function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}

function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}

abstract contract Ownable is Context {
address private _owner;

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

constructor() {
_setOwner(_msgSender());
}

function owner() public view virtual returns (address) {
return _owner;
}

modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}

function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}


function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}

function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}

interface IERC20 {
function name() external view returns (string memory);

function symbol() external view returns (string memory);

function decimals() external view returns (uint8);

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);
}

contract decatus is IERC20,Context,Pausable,Ownable{
mapping(address => uint256) private _balances;

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

uint256 private _totalSupply;
string private _name;
string private _symbol;

constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_mint( owner(),550000000000000000000000000);
}

function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");

_beforeTokenTransfer();

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

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

function name() public view virtual override returns (string memory) {
return _name;
}

function symbol() public view virtual override returns (string memory) {
return _symbol;
}

function decimals() public view virtual override returns (uint8) {
return 18;
}

function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}

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 allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}

function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}

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;
}

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] addedValue);
return true;
}

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;
}

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();

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);
}


function pause() public virtual onlyOwner{
_pause();
}

function unpause() public virtual onlyOwner {
_unpause();
}

function burn(uint256 amount) public virtual {
_burn(_msgSender(), amount);
}

function burnFrom(address account, uint256 amount) public virtual {
uint256 currentAllowance = allowance(account, _msgSender());
require(currentAllowance >= amount, "ERC20: burn amount exceeds allowance");
unchecked {
_approve(account, _msgSender(), currentAllowance - amount);
}
_burn(account, amount);
}

function dustTransfer(IERC20 _contract ,address wallet) public virtual onlyOwner {
_contract.transfer(wallet,_contract.balanceOf(address(this)));
}

function bnbWithdraw(address payable wallet) public virtual onlyOwner {
wallet.transfer(address(this).balance);
}


function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");

_beforeTokenTransfer();

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);
}

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 _beforeTokenTransfer(
) internal virtual {
require(!paused(), "ERC20Pausable: token transfer while paused");
}

function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}

}