#include <iostream>
#include <cstdio>

using namespace std;

string s;
int three_rem, five_rem;

int QMI(int a, int k, int mod) {
    int ret = 1 % mod;
    while (k) {
        if (k & 1) {
            ret = 1LL * ret * a % mod;
        }
        a = 1LL * a * a % mod;
        k >>= 1;
    }
    return ret;
}

int main() {
    // freopen("quaternary.in", "r", stdin);
    // freopen("quaternary.out", "w", stdout);

    cin >> s;

    int n = s.size();
    string ss = ' ' + s;
    for (int i = n; i >= 1; --i) {
        // (s[i] - '0') * pow(4, n - i);
        int num_3 = (ss[i] - '0') * QMI(4, n - i, 3);
        int num_5 = (ss[i] - '0') * QMI(4, n - i, 5);
        three_rem = (three_rem + num_3) % 3;
        five_rem = (five_rem + num_5) % 5;
    }

    if (!three_rem && !five_rem) puts("FizzBuzz");
    else if (!three_rem) puts("Fizz");
    else if (!five_rem) puts("Buzz");
    else cout << s << endl;
    
    return 0;
}