#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int a[7] = {1, 4, 16, 82, 6724, 50626, 1000000000},
    b[7] = {0, 1, 2, 0, 3, 1, 114514};
int mark[100];
int main() {
  int n;
  cin >> n;
  int ans = 0;
  for (int i = 1; i <= n; ++i) {
    ll temp;
    cin >> temp;
    int lb = ceil(pow(temp, 0.25)), hb = min(temp - 1, (ll)floor(sqrt(temp)));
    for (int j = 0; j < 6; ++j)
      if (a[j] <= hb && a[j + 1] - 1 >= lb) mark[b[j]] = i;
    if (lb <= hb) {
      for (int j = 0;; ++j)
        if (mark[j] != i) {
          ans ^= j;
          break;
        }
    }
  }
  cout << (ans == 0 ? "Rublo" : "Furlo");
}
