Prog#033: Uppercase or not

C Programming
1 
/* 
Program#33
Uppercase or not
*/

#include <stdio.h>
main(){
char a;
printf("\nEnter a alphabet :");
scanf("%c",&a);
if(a>=65 && a<=90)
printf("\n%c is uppercase letter\n",a);
else
printf("\n%c is Not uppercase letter\n",a);
}