#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

int main(){
  int N; cin >> N;
  bool F4 = false, F6 = false;
  while(N>0){
    int n = N%10;
    if(n == 4) F4 = true;
    if(n == 6) F6 = true;
    N /= 10;
  }
  if(F4 and F6) cout << "Beautiful" << endl;
  else cout << "..." << endl;
}