#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#define	BUFSZ	(1024)
#define	DEBUG	1

int	main(void) {
	int	i;
	int	alphaCount[ 'Z' - 'A' + 1 ];
	int	notAlpha = 0;
	char	buf[BUFSZ];

	for (i=0;i<sizeof(alphaCount) / sizeof(int);i++)
		alphaCount[i] = 0;

	fgets(buf, BUFSZ, stdin);
	for (i=0;i<strlen(buf);i++) {
		char c = buf[i];
		if (DEBUG) printf("[%c]", c);
		if (islower(c)) {
			alphaCount[ c - 'a' ]++;
		} else if (isupper(c)) {
			alphaCount[ c - 'A' ]++;
		} else {
			notAlpha++;
		}
	}
	for (i=0;i<sizeof(alphaCount) / sizeof(int);i++) {
		printf("%c : %d\n", 'A' + i, alphaCount[i]);
	}
	printf("not alpha : %d\n", notAlpha);
	exit(0);
}