// ex_ch8_3.c
#include <stdio.h>
#include <ctype.h>

int main(void)
{
	int ch;
	int num_lower = 0, num_upper = 0;
	
	while ((ch = getchar()) != EOF) {
		if (isupper(ch))
			num_upper++;
		else if (islower(ch))
			num_lower++;
	}
	printf("Upper %d, lower %d\n", num_upper, num_lower);
	return 0;
}