#include <bits/stdc++.h>
using namespace std;
const int maxx = 60000;
const long long wh2 = ((long long)50626) * 50626;
int ans[maxx];
bool was[20];
int n;
int main() {
  ans[0] = 0;
  for (int i = 1; i < maxx; i++) {
    int minb = max(0, (int)sqrt(sqrt(i)) - 5);
    int maxb = min(i - 1, (int)sqrt(i) + 5);
    for (int j = 0; j < 10; j++) was[j] = false;
    for (int j = minb; j <= maxb; j++)
      if (j * j <= i && ((long long)j) * j * j * j >= i) was[ans[j]] = true;
    for (int j = 0; j < 10; j++)
      if (!was[j]) {
        ans[i] = j;
        break;
      }
  }
  scanf("%d", &n);
  int answer = 0;
  for (int i = 0; i < n; i++) {
    long long a;
    scanf("%lld", &a);
    if (a >= wh2)
      answer ^= 2;
    else if (a >= maxx)
      answer ^= 1;
    else
      answer ^= ans[a];
  }
  if (answer == 0)
    cout << "Rublo" << endl;
  else
    cout << "Furlo" << endl;
  return 0;
}
