#include<iostream>
using namespace std;
string s;int a,b;
main()
{
	cin>>s;
	for(int i=0;i<s.size();i++)
	{
		int n=s[i]-'0';
		a+=n;
		b=n-b;
	}
	if(a%3&&b%5)cout<<s<<endl;
	else cout<<(a%3?"":"Fizz")<<(b%5?"":"Buzz")<<endl;
}