// vowels.c -- uses multiple labels
#include <stdio.h>

int main(void)
{
	char ch;
	int a_ct, e_ct, i_ct, o_ct, u_ct;
	a_ct = e_ct = i_ct = o_ct = u_ct = 0;

	printf("Enter some text; enter # to quit.\n");
	while ((ch = getchar()) != '#')
	{
		switch (ch)
		{
			case 'a':
			case 'A':
				a_ct++;
				break;
			case 'e':
			case 'E':
				e_ct++;
				break;
			case 'i':
			case 'I':
				i_ct++;
				break;
			case 'o':
			case 'O':
				o_ct++;
				break;
			case 'u':
			case 'U':
				o_ct++;
				break;
			default:
				break;
		// ent of switch
		}
	// while loop end
	}
	printf("number of vowels:   A    E    I    O    U\n");
	printf("                 %4d %4d %4d %4d %4d\n", 
		a_ct, e_ct, i_ct, o_ct, u_ct);

	return 0;
}