#include <bits/stdc++.h>
using namespace std;
long long a[4], x = 0, y, b[4];
int main() {
  scanf("%lld%lld%lld", &a[1], &a[2], &a[3]);
  printf("First\n");
  fflush(stdout);
  while (1) {
    for (int i = 1; i <= 3; i++) b[i] = a[i];
    sort(b + 1, b + 4);
    if (x && b[3] - b[2] == b[2] - b[1])
      y = b[2] - b[1];
    else
      y = 2 * b[3] - b[1] - b[2];
    printf("%lld\n", y);
    fflush(stdout);
    scanf("%lld", &x);
    if (x <= 0) break;
    a[x] += y;
  }
  return 0;
}
