#include <iostream>
using namespace std;
int a[30];

int main() {
	char in;

	while (cin >> in) {

		int m = int(in) - 'A' + 1;

		if (m > 0 && m <= 26) {
			a[m]++;
		}
	}

	int n = 0;

	for (int i = 1; i <= 26; i++) {
		n = max(n, a[i]);
	}

	for (int i = n; i >= 1; i--) {
		for (int j = 1; j <= 26; j++) {
			if (a[j] >= i) {
				cout << "* ";
			} else {
				bool flag = 0;

				for (int l = i; l <= 26; l++) {
					if (a[l] >= i) {
						flag++;
					}
				}

				if (flag == 1) {
					cout << "  ";
				}
			}
		}

		cout << endl;
	}

	cout << "A B C D E F G H I J K L M N O P Q R S T U V W X Y Z";
	return 0;
}

求助dalao！