#include <stdio.h>
#include <ctype.h>

int main() {
    char c;
    int a=0, e=0, i=0, o=0, u=0;
    puts("Enter a stream of characters:");
    
    while((c=getchar())!='\n')
    {
    switch(c)
    {
    case 'a':
    case 'A':a++; break;
    case'e':
    case'E':e++; break;
    case 'i':
    case 'I':i++; break;
    case 'o':
    case 'O':o++; break;
    case 'u':
    case 'U':u++; break;
    }
    
    }

    printf("A=%d\n", a);
    printf("E=%d\n", e);
    printf("I=%d\n", i);
    printf("O=%d\n", o);
    printf("U=%d\n", u);
    return 0;
}