#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <math.h>

using ll = long long;
using namespace std;

const int MOD = 1e9+7;

int main() {
    string N;
    int a,b;
    a = b = 0;
    cin >> N;
    for(int i = 0; i < (int)N.length(); i++)
    {
        a += N[i] - '0';
        if (((int)N.length() - 1 - i) % 2) {
            b -= N[(int)N.length() - 1 - i] - '0';
        }
        else {
            b += N[(int)N.length() - 1 - i] - '0';
        }
    }
    if (a % 3 == 0) {
        cout << "Fizz";
    }
    if (b % 5 == 0) {
        cout << "Buzz";
    }
    if (a % 3 && b % 5) {
        cout << N;
    }
    cout << endl;
    return 0;
}