#include <bits/stdc++.h>
#define REP(i, a, n) for(ll i = ((ll) a); i < ((ll) n); i++)
using namespace std;
typedef long long ll;

int main(void) {
  string S;
  cin >> S;

  ll N = 0, p = 1;
  REP(i, 0, S.length()) {
    N += (S[S.length() - i - 1] - '0') * p;
    N %= 15;
    p *= 4;
    p %= 15;
  }

  cerr << N << endl;

  if(N % 15 == 0) {
    cout << "FizzBuzz" << endl;
  } else if(N % 3 == 0) {
    cout << "Fizz" << endl;
  } else if(N % 5 == 0) {
    cout << "Buzz" << endl;
  } else {
    cout << S << endl;
  }
}