#include <bits/stdc++.h>
using namespace std;
long long flag[10] = {3, 15, 81, 82 * 82 - 1, 15 * 15 * 15 * 15, 2562991875LL};
long long fuck[10] = {0, 1, 2, 0, 3, 1, 2};
long long n, ans, x;
long long work() {
  int i;
  for (i = 0; i < 6; i++) {
    if (x <= flag[i]) break;
  }
  return fuck[i];
}
int main() {
  while (~scanf("%I64d", &n)) {
    ans = 0;
    for (long long i = 1; i <= n; i++) {
      scanf("%I64d", &x);
      ans ^= work();
    }
    if (ans)
      printf("Furlo\n");
    else
      printf("Rublo\n");
  }
  return 0;
}
