#include <bits/stdc++.h>
int n, j, ans;
long long i;
long long a[] = {0, 4, 16, 82, 6724, 50626, 2562991876ll, 777777777778ll};
int b[] = {0, 1, 2, 0, 3, 1, 2};
int main() {
  scanf("%d", &n);
  while (n--) {
    scanf("%I64d", &i);
    for (j = 0; a[j] <= i; ++j)
      ;
    --j;
    ans ^= b[j];
  }
  puts(ans ? "Furlo" : "Rublo");
  return 0;
}
