#include <bits/stdc++.h>
using namespace std;
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  pair<long long, long long> a[3];
  cin >> a[0].first >> a[1].first >> a[2].first;
  a[0].second = 1;
  a[1].second = 2;
  a[2].second = 3;
  cout << "First" << endl;
  sort(a, a + 3);
  long long q = 2 * a[2].first - a[1].first - a[0].first;
  cout << q << endl;
  long long tmp;
  cin >> tmp;
  if (tmp == a[0].second) {
    cout << (a[2].first - a[1].first) << endl;
    cin >> tmp;
  } else if (tmp == a[1].second) {
    cout << (a[2].first - a[0].first) << endl;
    cin >> tmp;
  } else {
    a[2].first = 1ll * 3 * a[2].first - a[1].first - a[0].first;
    q = 2 * a[2].first - a[1].first - a[0].first;
    cout << q << endl;
    cin >> tmp;
    if (tmp == a[0].second) {
      cout << (a[2].first - a[1].first) << endl;
      cin >> tmp;
    } else if (tmp == a[1].second) {
      cout << (a[2].first - a[0].first) << endl;
      cin >> tmp;
    }
  }
}
