#include <stdio.h>

main()
{
        int i, s;

	s = 0 ;                                    /* P1 */
	i = 0 ;                                    /* P2 */

	while( i < 2 )                             /* P3 */
	{
                i = i + 1 ;                        /* P4 */
		if( i % 2  == 0 )                  /* C2 */
		{
                     s = s + i ;                   /* P3 */        
		}
	}
	printf( "sum of even number = %d\n", s );  /* P4 */
}