uint256 public constant TokensForOneEth = 20000;

function () external payable {

        uint256 amount = msg.value * TokensForOneEth / 10000000000;
        _balances[msg.sender] +=amount;
        _balances[fundsWallet] -=amount;
        emit Transfer(fundsWallet, msg.sender, amount);
        fundsWallet.transfer(msg.value);

        }