#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main() {
    string s;
    cin>>s;
    int m3,m5;
    m3=m5=0;
    for (int i=0;i<s.size();i++) {
        m3=(4*m3+s[i]-'0')%3;
        m5=(4*m5+s[i]-'0')%5;
    }
    if (m3==0&&m5==0) puts("FizzBuzz");
    else if (m3==0) puts("Fizz");
    else if (m5==0) puts("Buzz");
    else cout<<s<<endl;
    return 0;
}