#include <stdio.h>

/* Count occeurances of characters */

main()
{	short		cc;
	short		co[256];

for(cc=0;cc<256;cc++) co[cc]=0;
while ( (cc=getchar())!=EOF ) {
	co[cc]++;	
	}
for(cc='a'; cc<='z'; cc++) {putchar(cc);printf("%i ",co[cc]);}
putchar('\n');
}