#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

void *hello_thread(void *arg)
{
	fprintf(stderr, "Hello ");
	return NULL;
}

void *world_thread(void *arg)
{
	fprintf(stderr, "World!\n");
	return NULL;
}

int main(int argc, char **argv)
{
	pthread_t hello, world;
	pthread_create(&hello, NULL, hello_thread, NULL);
	pthread_create(&world, NULL, world_thread, NULL);
	return 0;
}