#include <bits/stdc++.h>
#define rep(i, n) for (lli i = 0; i < (n); i++)
#define rrep(i, n) for (lli i = (n)-1; i >= 0; i--)
using namespace std;
using lli = long long int;
int main()
{
    string s;
    cin >> s;
    lli val = 0;
    rep(i, s.size())
    {
        val = 4 * val + s[i] - '0';
        val %= 15;
    }
    string ss = "Fizz", t = "Buzz";
    if (val % 15 == 0) {
        cout << ss + t << endl;
    } else if (val % 5 == 0) {
        cout << t << endl;
    } else if (val % 3 == 0) {
        cout << ss << endl;
    } else {
        cout << s << endl;
    }
}