#include <bits/stdc++.h>
using namespace std;
int ai00(long long x) {
  if (x <= 3) return 0;
  if (x <= 15) return 1;
  if (x <= 81) return 2;
  if (x <= 6723) return 0;
  if (x <= 50625) return 3;
  if (x <= 2562991875LL) return 1;
  return 2;
}
int main() {
  int n;
  while (scanf("%d", &n) != EOF) {
    long long x;
    int ans = 0;
    for (int i = 0; i < n; ++i) {
      scanf("%I64d", &x);
      ans ^= ai00(x);
    }
    if (ans)
      printf("Furlo\n");
    else
      printf("Rublo\n");
  }
}
