#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
#define FOR(i,a,b) for(int (i)=(a);i<(int)(b);i++)
#define rep(i,n) FOR(i,0,n)

bool f(string& s, int mod) {
    int x = 1, t = 0;
    int n = s.size();
    rep(i, n) {
        int b = s[n - 1 - i] - '0';
        t = (t + b * x) % mod;
        x = (x * 4) % mod;
    }
    return t == 0;
}


int main() {
    string s;
    cin >> s;
    
    if (f(s, 15)) {
        cout << "FizzBuzz" << endl;
    }
    else if (f(s, 3)) {
        cout << "Fizz" << endl;
    }
    else if (f(s, 5)) {
        cout << "Buzz" << endl;
    }
    else {
        cout << s << endl;
    }

    return 0;
}