#include <bits/stdc++.h>
using namespace std;
using ll = long long;
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n = 3;
  pair<ll, ll> pi[n];
  for (int i = 0; i < n; ++i) {
    ll x;
    cin >> x;
    pi[i] = {x, i + 1};
  }
  sort(pi, pi + n);
  cout << "First\n";
  cout.flush();
  cout << 2 * pi[2].first - pi[0].first - pi[1].first << '\n';
  cout.flush();
  int x;
  cin >> x;
  if (x == pi[2].second) {
    pi[2].first += 2 * pi[2].first - pi[0].first - pi[1].first;
    cout << 2 * pi[2].first - pi[0].first - pi[1].first << '\n';
    cout.flush();
    cin >> x;
    if (x == pi[0].second) {
      cout << pi[2].first - pi[1].first << '\n';
    } else {
      cout << pi[2].first - pi[0].first << '\n';
    }
  } else if (x == pi[0].second) {
    cout << pi[2].first - pi[1].first << '\n';
  } else {
    cout << pi[2].first - pi[0].first << '\n';
  }
  return 0;
}
