#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

bool solve(const string& s, int a)
{
    int n = s.size();
    int x = 0;
    for(int i=0; i<n; ++i){
        x *= 4;
        x += s[i] - '0';
        x %= a;
    }
    return x == 0;
}

int main()
{
    string s;
    cin >> s;

    bool fizz = solve(s, 3);
    bool buzz = solve(s, 5);
    if(fizz || buzz){
        if(fizz)
            cout << "Fizz";
        if(buzz)
            cout << "Buzz";
        cout << endl;
    }
    else{
        cout << s << endl;
    }

    return 0;
}