Program in C to print numbers from 1-50 which are divided by 7

Write a program in C to print numbers from 1-50 which are divided by 7

#include <stdio.h>

void main ()

{

          int a;

          clrscr ();

          a=1;

          while (a<=50)

          {

                   if (a%7==0)

                             printf ("%d\n",a);

                   a++;

          }

          getch ();

}