#include <bits/stdc++.h>
using namespace std;

int n;
bool f = 0, g = 0;

int main()
{
	cin >> n;

	while (n > 0) {
		if (n % 10 == 4)
			f = 1;
		else if (n % 10 == 6)
			g = 1;

		n /= 10;
	}

	if (f && g)
		cout << "Beautiful" << endl;
	else
		cout << "..." << endl;
}