#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  long long int n, a, i, p = 0;
  cin >> n;
  for (i = 0; i < n; i++) {
    cin >> a;
    if (a >= 4 && a <= 15) p ^= 1;
    if (a >= 16 && a <= 81) p ^= 2;
    if (a >= 6724 && a <= 50625) p ^= 3;
    if (a >= 50626 && a <= 2562991875LL) p ^= 1;
    if (a >= 2562991876LL) p ^= 2;
  }
  if (p == 0)
    cout << "Rublo";
  else
    cout << "Furlo";
  cout << endl;
  return 0;
}
