#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
using ll = long long;
using pll = pair<ll, ll>;
const int N = 1e4 + 4;
int grundy[N];
int pre[N];
int mex(set<int> se) {
  for (int i = 0;; i++)
    if (!se.count(i)) return i;
  return -1;
}
vector<pll> ve[44];
int calc_grundy(ll x) {
  for (int i = 0; i <= 3; i++) {
    for (pll p : ve[i])
      if (p.first <= x && x <= p.second) return i;
  }
}
int main() {
  ios_base::sync_with_stdio(false);
  ve[0].push_back({0, 3});
  ve[1].push_back({4, 15});
  ve[2].push_back({16, 81});
  ve[0].push_back({82, 6723});
  ve[3].push_back({6724, 50624});
  ve[1].push_back({50625, 2562890624});
  ve[2].push_back({2562890625, 777777777777});
  int n;
  cin >> n;
  int res = 0;
  for (int i = 0; i < n; i++) {
    ll x;
    cin >> x;
    res ^= calc_grundy(x);
  }
  if (res)
    cout << "Furlo\n";
  else
    cout << "Rublo\n";
  return 0;
}
