#include <bits/stdc++.h>
using namespace std;
int get(long long temp) {
  if (temp < 4)
    return 0;
  else if (temp < 16)
    return 1;
  else if (temp < 82)
    return 2;
  else if (temp < 82 * 82)
    return 0;
  else if (temp < 15 * 15 * 15 * 15 + 1)
    return 3;
  else if (temp <
           (long long)((15 * 15 * 15 * 15) + 1) * ((15 * 15 * 15 * 15) + 1))
    return 1;
  else
    return 2;
}
int main() {
  int n;
  int res = 0;
  cin >> n;
  while (n--) {
    long long temp;
    cin >> temp;
    res ^= get(temp);
  }
  puts(res ? "Furlo" : "Rublo");
}
