pragma solidity ^0.4.15;

contract Deal {
    address public dealer;
    address public from;
    address public to;
    uint public fee;

    function Deal(uint _fee, address _to) {
        dealer = msg.sender;
        fee = _fee;
        to = _to;
    }

    function pay() external payable {
        require(this.balance >= fee);
        from = msg.sender;
    }

    function overpay(uint rise) external payable {
        fee += rise;
        require(msg.sender == from && this.balance >= fee);
    }

    function deal(bool approve) external {
        require(msg.sender == dealer);
        if (approve) {
            to.transfer(this.balance - fee);
        }
        else {
            from.transfer(this.balance - fee);
        }
        suicide(dealer);
    }
}