#include <iostream>

using namespace std;

bool isDivisible(string str, int n) {
    int ret = 0;
    for (int i = 0; i < str.length(); ++i)
        ret = (ret * 4 + (str[i] - '0')) % n;
    return ret == 0;
}

int main() {
    string N, ans;
    cin >> N;
    bool isFizz = isDivisible(N, 3);
    bool isBuzz = isDivisible(N, 5);
    if (isFizz && isBuzz) {
        ans = "FizzBuzz";
    } else if (isFizz) {
        ans = "Fizz";
    } else if (isBuzz) {
        ans = "Buzz";
    } else {
        ans = N;
    }
    cout << ans << endl;
    return 0;
}