#include <bits/stdc++.h>
using namespace std;
inline int cmp(double x, double y = 0, double tol = 1e-9) {
  return (x <= y + tol) ? (x + tol < y) ? -1 : 0 : 1;
}
unsigned long long int intervals[20][3];
void init_intervals() {
  intervals[0][0] = 0ull;
  intervals[0][1] = 3ull;
  intervals[0][2] = 0ull;
  intervals[1][0] = 4ull;
  intervals[1][1] = 15ull;
  intervals[1][2] = 1ull;
  intervals[2][0] = 16ull;
  intervals[2][1] = 81ull;
  intervals[2][2] = 2ull;
  intervals[3][0] = 82ull;
  intervals[3][1] = 6723ull;
  intervals[3][2] = 0ull;
  intervals[4][0] = 6724ull;
  intervals[4][1] = 50625ull;
  intervals[4][2] = 3ull;
  intervals[5][0] = 50626ull;
  intervals[5][1] = 2562991875ull;
  intervals[5][2] = 1ull;
  intervals[6][0] = 2562991876ull;
  intervals[6][1] = -1ull;
  intervals[6][2] = 2ull;
}
int find_nimber(unsigned long long int n) {
  unsigned long long int u, l, v;
  for (int i = 0; i < 7; ++i) {
    l = intervals[i][0];
    u = intervals[i][1];
    v = intervals[i][2];
    if (l <= n && n <= u) return v;
  }
}
int main() {
  init_intervals();
  int num, nim = 0;
  unsigned long long int pila;
  cin >> num;
  for (int i = 0; i < num; ++i) {
    cin >> pila;
    nim ^= find_nimber(pila);
  }
  cout << (nim ? "Furlo" : "Rublo") << endl;
  return 0;
}
