vowel or constant

#include <stdio.h> void main() {      char ch;           printf("Enter a character: ");      scanf('%c', &ch);          if(ch=='a' || ch=='e' || ch=='i' || ch=='o' || ch =='u')     {     printf(" %c is a vowels ", ch) ;         }   else  if(ch=='A' || ch=='E' || ch=='I' || ch=='O' || ch =='U')   {   printf("%c is a vowel ", ch) ;   }   else   {   printf(" %c is a constant", ch);   } }

Simple Output :

Enter a character :L

L is a constant