#include <bits/stdc++.h>
using namespace std;
const int NMax = 107777;
int N;
long long A[NMax];
int main() {
  scanf("%d", &N);
  int ret = 0;
  for (int i = 1; i <= N; i++) {
    scanf("%I64d", A + i);
    if (A[i] < 4)
      ret ^= 0;
    else if (A[i] >= 4 && A[i] < 16)
      ret ^= 1;
    else if (A[i] >= 16 && A[i] <= 81)
      ret ^= 2;
    else if (A[i] >= 82 && A[i] <= 6723)
      ret ^= 0;
    else if (A[i] >= 6724 && A[i] <= 50625)
      ret ^= 3;
    else if (A[i] >= 50626 && A[i] < 2562890626LL)
      ret ^= 1;
    else
      ret ^= 2;
  }
  if (ret == 0)
    puts("Rublo");
  else
    puts("Furlo");
  getchar();
  getchar();
  return 0;
}
