#include <bits/stdc++.h>
using namespace std;
int ch[7][2] = {{0, 0},    {4, 1},     {16, 2},     {82, 0},
                {6724, 3}, {50626, 1}, {8819120, 0}};
int main() {
  int n, r = 0, t, i;
  long long u, s, f;
  cin >> n;
  for (i = 0; i < n; i++) {
    cin >> u;
    if (u < 4) continue;
    s = pow(u, 0.25);
    f = sqrt(u);
    while (s * s * s * s < u) s++;
    while (f * f <= u) f++;
    f--;
    set<int> v;
    set<int>::iterator it;
    for (int j = 0; j < 6; j++) {
      if (min(f, ch[j + 1][0] - 1ll) >= max(s, (long long)ch[j][0]))
        v.insert(ch[j][1]);
    }
    for (t = 0, it = v.begin(); it != v.end() && *it == t; t++, it++)
      ;
    r ^= t;
  }
  puts(r ? "Furlo" : "Rublo");
  return 0;
}
