#include <bits/stdc++.h>
using namespace std;
long long v[4];
void go(long long x) {
  cout << x << endl;
  int ans;
  cin >> ans;
  if (ans <= 0) exit(0);
  v[ans] += x;
}
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  for (int i = 1; i <= 3; i++) cin >> v[i];
  cout << "First" << endl;
  go(max(max(v[1], v[2]), v[3]));
  long long mx = max(max(v[1], v[2]), v[3]);
  go(mx - v[1] + mx - v[2] + mx - v[3]);
  mx = max(max(v[1], v[2]), v[3]);
  long long mn = min(min(v[1], v[2]), v[3]);
  go((mx - mn) / 2);
}
