#include <bits/stdc++.h>
using namespace std;
long long lower[8] = {0, 4, 16, 82, 6724, 50626, 2562991876LL, 777777777778LL};
int grundy[7] = {0, 1, 2, 0, 3, 1, 2};
int main() {
  int res = 0;
  int N;
  long long a;
  scanf("%d", &N);
  for (int i = 0; i < N; i++) {
    cin >> a;
    int j = 0;
    while (lower[j + 1] <= a) j++;
    res ^= grundy[j];
  }
  if (res == 0)
    printf("Rublo\n");
  else
    printf("Furlo\n");
  return 0;
}
