#include <bits/stdc++.h>
using namespace std;
signed main() {
  ios_base::sync_with_stdio(0);
  long long n, s;
  cin >> n;
  s = 0;
  for (long long i = 0; i < n; i++) {
    long long x;
    long long y;
    cin >> x;
    if (x < 4)
      y = 0;
    else if (x < 16)
      y = 1;
    else if (x < 82)
      y = 2;
    else if (x < 6724)
      y = 0;
    else if (x < 50626)
      y = 3;
    else if (x < 2562991876ll)
      y = 1;
    else
      y = 2;
    s ^= y;
  }
  if (s > 0)
    cout << "Furlo";
  else
    cout << "Rublo";
}
