#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

int main(){
    
    string s;
    cin >> s;
    int a, b, c;
    a = b = 0;
    int n = s.size();
    
    for (int i = 0; i < n; i++){
        c += s[i] - '0';
        if ((i - '0') % 2 == 0)
            a += s[i] - '0';
        else
            b += s[i] - '0';
    }
    
    string ans = s;
    if ( (a - b)  % 11 == 0 && c == 3 )
        ans = "FizzBuzz";
    else if ((a - b)  % 11 == 0)
        ans = "Buzz";
    else if (c % 3 == 0)
        ans = "Fizz";
    
    
    cout << ans << endl;
    return 0;
    
}