#include <stdio.h>
#include <pthread.h>
void *hello(void *tid)
{
    printf("Hello from thread %ld\n", (long)tid);
}

int main()
{
    pthread_t tid[10];
    long i;
    for (i = 0; i < 10; i++)
    {
        pthread_create(&tid[i], NULL, hello, (void *)i);
        pthread_join(tid[i], NULL);
    }
    pthread_exit(NULL);
}