/* prints a histogram of the frequencies of different characters in
 * input
 */

#include <stdio.h>

#define MAXHIST 10.0


int main(void) {
     int longest = 0;
     int c, i, val;
     int chars['z'-'a'+1];

     for(i = 0; i < 'z'-'a'+1; i++)
	  chars[i] = 0;

     /* get input */
     while ((c=getchar()) != EOF) {
	  if (isalpha(c)) {
	       val = tolower(c) - 'a';
	       chars[val]++;
	       longest = (chars[val] > longest) ? chars[val] : longest;
	  }
     }

     /* draw histogram */
     for (c = MAXHIST; c > 0; c--) {
	  putchar('\n');
	  for (i = 0; i < 'z'-'a'+1; i++)
	       if (chars[i] >= ((longest/MAXHIST)*c) &&
		    chars[i] > 0)
		    printf("#  ");
	       else
		    printf("   ");
     }

     /* draw footer */
     putchar('\n');
     for (i = 0; i < 'z'-'a'+1; i++)
	  if (chars[i] > 0)
	       printf("---");
     putchar('\n');
     for (i = 0; i < 'z'-'a'+1; i++)
	  if (chars[i] > 0)
	       printf("%-3c", i + 'a');
     putchar('\n');

     return 0;
}