Program to print counting as per requirement of user

/* counting as per requirement of user */
# include <stdio.h>
void main ()
{
int a,b ;
clrscr () ;
printf ("/n enter value of a :") ;
scanf ("%d", & a) ;
printf ("/n enter value of b :") ;
scanf ("%d", & b) ;
while ( a<=b)
{
printf ("/n %d", a) ;
a++ ;
}
getch () ;
}