#include <bits/stdc++.h>
using namespace std;
int n;
long long x;
int main() {
  cin.sync_with_stdio(0);
  int grundy = 0LL;
  cin >> n;
  while (n--) {
    cin >> x;
    if (x < 4)
      grundy ^= 0;
    else if (x < 16)
      grundy ^= 1;
    else if (x < 82)
      grundy ^= 2;
    else if (x < 6724)
      grundy ^= 0;
    else if (x < 50626)
      grundy ^= 3;
    else {
      if (x < 50626LL * 50626LL)
        grundy ^= 1;
      else
        grundy ^= 2;
    }
  }
  if (grundy > 0)
    cout << "Furlo" << endl;
  else
    cout << "Rublo" << endl;
  return 0;
}
