// No.593 4進FizzBuzz
// https://yukicoder.me/problems/no/593
//
#include <iostream>
#include <string>
using namespace std;

string solve(string &&s);


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

    string s;
    cin >> s;
    string ans = solve(move(s));
    cout << ans << endl;
}

string solve(string &&s) {
    string ans = s;

    int digit = s.size();
    int sign = 1;
    if (digit % 2 == 0)
        sign = -1;

    int fizz = 0;
    int buzz = 0;

    for (char c: s) {
        int n = c - '0';
        fizz += n;
        buzz += n * sign;
        sign *= -1;
    }

    if (fizz % 3 == 0) {
        if (buzz % 5 == 0)
            ans = "FizzBuzz";
        else
            ans = "Fizz";
    } else if (buzz % 5 == 0)
        ans = "Buzz";
    return ans;
}