#include <omp.h>
#include <iostream>

using namespace std;
int main()
{
        #pragma omp parallel num_threads(2)
	{
                int total_threads = omp_get_num_threads();
                int myid = omp_get_thread_num();
                #pragma omp critical
                cout << "Hello world, I am No." << myid << " out of " 
		     << total_threads  << " Members\n";
        }
        return 0;
}