#include <stdio.h>
#include <omp.h>

int main()
{
//  omp_set_num_threads(6);
#pragma omp parallel
  {
    int nthread = omp_get_num_threads();
    int ithread = omp_get_thread_num();
    printf("Hello World from %d of %d!\n", ithread, nthread);
  }
  
  return 0;
}