#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>

int
main(void)
{
	int i;

	printf("pid %d\n", getpid());

	i = 0;
	while (1) {
		printf("%d\n", i);
		i++;
		sleep(1);
	}
	return (0);
}