#include <bits/stdc++.h>
using namespace std;
const int N = 300000;
int sg(long long x) {
  if (0 <= x && x <= 3) return 0;
  if (4 <= x && x <= 15) return 1;
  if (16 <= x && x <= 81) return 2;
  if (82 <= x && x <= 6723) return 0;
  if (6724 <= x && x <= 50625) return 3;
  if (50626 <= x && x <= 2562991875) return 1;
  return 2;
}
int main() {
  int n;
  while (~scanf("%d", &n)) {
    long long ans = 0;
    for (int i = 1; i <= n; ++i) {
      long long x;
      scanf("%I64d", &x);
      ans ^= sg(x);
    }
    if (ans)
      puts("Furlo");
    else
      puts("Rublo");
  }
  return 0;
}
