#include <stdio.h>

/*
 * count the number of each digit, whitespace, and all other chars
 */
void main(void)
{
	register int c;			/* input char */
	register int nwhite = 0;	/* whitespace count */
	register int nother = 0;	/* other count */
	register int i;			/* counter in a for loop */
	int ndigit[10];			/* digit counts */

	/*
	 * initialize the ndigit array
	 */
	for(i = 0; i < 10; i++)
		ndigit[i] = 0;

	/*
	 * handle input a char at a time
	 */
	while((c = getchar()) != EOF){
		/* see what it is */
		switch(c){
		case '0':		/* digit */
		case '1':
		case '2':
		case '3':
		case '4':
		case '5':
		case '6':
		case '7':
		case '8':
		case '9':
			ndigit[c - '0']++;
			break;
		case ' ':		 /* whitespace */
		case '\t':
		case '\n':
			nwhite++;
			break;
		default:		/* neither a digit nor whitespace */
			nother++;
			break;
		}
	}

	/*
	 * announce the results and quit
	 */
	printf("digits: ");
	for(i = 0; i < 10; i++){
		printf("'%c' %3d\t", i + '0', ndigit[i]);
		/* put 5 digits per line, for neat output */
		if (i == 4)
			printf("\n        ");
	}
	putchar('\n');
	printf("whitespace: %d\nother:      %d\n", nwhite, nother);
	exit(0);
}