#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  string S;
  cin >> S;
  int res = 0, b = 1;
  reverse(S.begin(), S.end());
  for (int i = 0; i < (int)S.size(); i++) {
    res += (S[i] - '0') * b;
    res %= 15;
    b *= 4;
    b %= 15;
  }
  if (res % 15 == 0) {
    cout << "FizzBuzz" << '\n';
  } else if (res % 3 == 0) {
    cout << "Fizz" << '\n';
  } else if (res % 5 == 0) {
    cout << "Buzz" << '\n';
  } else {
    reverse(S.begin(), S.end());
    cout << S << '\n';
  }
  return 0;
}