#include <bits/stdc++.h>
using namespace std;
const long long INF = 0x7fffffff;
long long x, y, z, ans, a[15];
int main() {
  scanf("%lld%lld%lld", &a[1], &a[2], &a[3]);
  printf("First\n");
  fflush(stdout);
  printf("%lld\n", INF);
  fflush(stdout);
  scanf("%lld", &x);
  a[x] += INF;
  y = 3 * a[x] - a[1] - a[2] - a[3];
  printf("%lld\n", y);
  fflush(stdout);
  scanf("%lld", &z);
  a[z] += y;
  ans = a[x] - a[6 - x - z];
  printf("%lld\n", ans);
  return 0;
}
