#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n, ans = 0, x;
  cin >> n;
  for (int i = 1; i <= n; ++i) {
    cin >> x;
    if (x <= 3)
      ans ^= 0;
    else if (x <= 15)
      ans ^= 1;
    else if (x <= 81)
      ans ^= 2;
    else if (x <= 6724)
      ans ^= 0;
    else if (x <= 50625)
      ans ^= 3;
    else if (x <= 2562991875)
      ans ^= 1;
    else
      ans ^= 2;
  }
  if (ans == 0)
    cout << "Rublo" << endl;
  else
    cout << "Furlo" << endl;
}
