#include <bits/stdc++.h>
long long t;
int p, sg[6][2000006], n;
int sqrt4(long long t) {
  int l = 1, r = 1000, ret = 0;
  while (l <= r) {
    int mid = (l + r) >> 1;
    if (1LL * mid * mid * mid * mid < t)
      l = mid + 1;
    else
      ret = mid, r = mid - 1;
  }
  return ret;
}
int sqrt2(long long t) {
  int l = 1, r = 2000000, ret = 0;
  while (l <= r) {
    int mid = (l + r) >> 1;
    if (1LL * mid * mid <= t)
      ret = mid, l = mid + 1;
    else
      r = mid - 1;
  }
  return ret;
}
void work(int now) {
  if (p >= now) return;
  while (p < now) {
    p++;
    int L = sqrt4(p), R = sqrt2(p), ret = 0;
    for (; sg[ret][R] - sg[ret][L - 1]; ret++)
      ;
    if (p < 4) ret = 0;
    sg[ret][p] = 1;
    for (int i = 0; i <= 4; i++) sg[i][p] += sg[i][p - 1];
  }
}
int main() {
  scanf("%d", &n);
  sg[0][0] = 1;
  int ans = 0;
  for (int i = 1; i <= n; i++) {
    scanf("%I64d", &t);
    int L = sqrt4(t), R = sqrt2(t);
    work(R);
    int ret = 0;
    for (; sg[ret][R] - sg[ret][L - 1]; ret++)
      ;
    if (t < 4) ret = 0;
    ans ^= ret;
  }
  if (ans)
    printf("Furlo\n");
  else
    printf("Rublo\n");
}
