#include<stdio.h>
#include<mpi.h>

int main(int argc, char **argv)
{
  int rank, size;

  MPI_Init(&argc, &argv);
  MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  MPI_Comm_size(MPI_COMM_WORLD, &size);

  printf("Hello World, I`m process %d of %d\n", rank, size);

  MPI_Finalize();
}