#include <iostream>
#include <string>

void solve() {
    std::string s;
    std::cin >> s;

    int m3 = 0, m5 = 0;
    for (char c : s) {
        int d = (c - '0');
        (m3 = m3 * 4 + d) %= 3;
        (m5 = m5 * 4 + d) %= 5;
    }

    if (m3 == 0 || m5 == 0) {
        if (m3 == 0) std::cout << "Fizz";
        if (m5 == 0) std::cout << "Buzz";
    } else {
        std::cout << s;
    }
    std::cout << std::endl;
}

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}