#include <bits/stdc++.h>

#define show(x) cerr << #x << " = " << x << endl

using namespace std;
using ll = long long;

template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v)
{
    os << "sz:" << v.size() << "\n[";
    for (const auto& p : v) {
        os << p << ",";
    }
    os << "]\n";
    return os;
}

template <typename S, typename T>
ostream& operator<<(ostream& os, const pair<S, T>& p)
{
    os << "(" << p.first << "," << p.second
       << ")";
    return os;
}


constexpr ll MOD = (ll)1e9 + 7LL;

template <typename T>
constexpr T INF = numeric_limits<T>::max() / 64;


int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    string s;
    cin >> s;
    auto S = s;
    int mod3 = 0;
    int mod5 = 0;
    reverse(s.begin(), s.end());
    for (const char c : s) {
        mod3 = (mod3 + (c - '0') % 3) % 3;
        mod5 = (4 * mod5 + (c - '0') % 5) % 5;
    }
    if (mod3 == 0 and mod5 == 0) {
        cout << "FizzBuzz" << endl;
    } else if (mod3 == 0) {
        cout << "Fizz" << endl;
    } else if (mod5 == 0) {
        cout << "Buzz" << endl;
    } else {
        cout << S << endl;
    }
    return 0;
}