#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define rep(i,s,e) for(int (i) = (s);(i) <= (e);(i)++)

int main(){
  string s;
  cin >> s;
  i64 N = 0;
  for(char c : s){
    int num = c - '0';
    N *= 4;
    N += num;
  }
  string ans[] = {to_string(N),"Fizz","Buzz","FizzBuzz"};
  cout << ans[(N % 3 == 0) | ((N % 5 == 0) << 1)] << endl;
}