#include <stdio.h>

#define MAX_AMOUNT_OF_LENGTHS 256

// drawing chart of chars usage

main()
{
	int c, i, j;
	int nlengths[MAX_AMOUNT_OF_LENGTHS];

	for (i = 0; i < MAX_AMOUNT_OF_LENGTHS; ++i)
		nlengths[i] = 0;
	
	while ((c = getchar()) != '\n')
		++nlengths[c];

	for (i = 1; i < MAX_AMOUNT_OF_LENGTHS; ++i)
	{
		int counter = nlengths[i];
		if (counter > 0)
		{
			printf("%c: ", i);
			while (counter > 0)
			{
				--counter;
				printf("*");
			}
			printf("\n");
		}
	}
}