#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  string s;
  cin >> s;
  int m = 0;
  for (char c : s) m = (m * 4 + (c - '0')) % 15;
  if (m == 0) {
    cout << "FizzBuzz" << '\n';
  }
  else if (m % 3 == 0) {
    cout << "Fizz" << '\n';
  }
  else if (m % 5 == 0) {
    cout << "Buzz" << '\n';
  }
  else {
    cout << s << '\n';
  }
  return 0;
}