rt，悬一关

码风见谅。

题目链接

交到CF评测机上爆WA，结果是：回答错误。输出格式错误。文件意外结束，应为int64（Wrong Answer.wrong output format Unexpected end of file - int64 expected）

code

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int INF = 1e10;
int a[4];
int pos;
signed main()
{
	cin >> a[1] >> a[2] >> a[3];
	cout << "First\n";
	fflush(stdout);
	cout << INF << "\n";
	fflush(stdout);
	cin >> pos;
	if(!pos) exit(0);
	a[pos] += INF;
	int res = 2 * a[pos];
	for(int i = 1;i <= 3;i++) if(i != pos) res -= a[i];
	cout << res << "\n";
	fflush(stdout);
	sort(a + 1,a + 4);
	cin >> pos;
	if(!pos) exit(0);
	cout << a[2] - a[1] << "\n";
	fflush(stdout);
	cin >> pos;
	if(!pos) exit(0);
}