given number is odd or even

#include <stdio.h>

int
main (void)
{
   /* declarations */
   int a;
 
   printf ("Enter value of a: ");
   scanf ("%d", &a);
   printf ("You entered: %d\n", a );
 
   if(a % 2 == 0)
printf("a is an even integer");
else
printf("a is an odd integer\n");
 



   return (0);
}