#include <iostream>
#include <cstdio>
#include <string>
#include <stack>
#include <vector>
using namespace std;

int main()
{
    string s;
    cin >> s;
    int t = 0, f = 0;
    for (int i = 0; i < s.size(); ++i)
    {
        const int x = s[i] - '0';
        t += x;
        f += i & 1 ? x : -x;
    }
    t %= 3;
    f %= 5;
    if (t == 0 || f == 0)
    {
        if (t == 0) cout << "Fizz";
        if (f == 0) cout << "Buzz";
    } 
    else
    {
        cout << s;
    }
    cout << endl;
}