#include <bits/stdc++.h>
using namespace std;
struct debugger {
  template <typename T>
  debugger& operator,(const T& v) {
    cerr << v << " ";
    return *this;
  }
} dbg;
int main() {
  long long n;
  while (cin >> n) {
    long long x = 0;
    for (int i = 0; i < n; i++) {
      long long a;
      cin >> a;
      long long p;
      if (a < 4)
        p = 0;
      else if (a < 16)
        p = 1;
      else if (a < 82)
        p = 2;
      else if (a < 6724)
        p = 0;
      else if (a < 50626)
        p = 3;
      else if (a < 2562991876)
        p = 1;
      else
        p = 2;
      x ^= p;
    }
    if (!x)
      printf("Rublo\n");
    else
      printf("Furlo\n");
  }
  return 0;
}
