#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;


int main(){
  string N;
  cin >> N;

  int x = 0;
  int y = 0;
  int p = 1;
  for(int i=N.size()-1; i>=0; i--){
    int a = (int)(N[i]-'0');
    x += a;
    y += a * p;
    y %= 10;
    p *= 4;
    p %= 10;
  }
  
  string ret = "";

  if(x%3 == 0){
    ret += "Fizz";
  }
  if(y%5 == 0){
    ret += "Buzz";
  }

  if(ret != ""){
    cout << ret << endl;
  }else{
    cout << N << endl;
  }
  
  return 0;
}