pragma solidity ^0.4.24;


contract DaysBank {
    mapping(address => uint) public balanceOf;

mapping(address => uint) public gift;

address owner;


constructor()public{
        owner = msg.sender;
    }


event SendFlag(uint256 flagnum, string b64email);

function payforflag(string b64email) public {
        require(balanceOf[msg.sender] >= 10000);

emit SendFlag(1,b64email);
    }