#include "mpi.h"
#include <iostream>

int main (int argc, char** argv)
{
  int index, rank, np, comm;
  MPI::Init(argc, argv);
  np = MPI::COMM_WORLD.Get_size();
  rank = MPI::COMM_WORLD.Get_rank();
  std::cout<<"Started as #"<<rank<<" out of "<<np<<std::endl;
  for (index = 0; (index < rank); index++)
    {
      MPI::COMM_WORLD.Recv(&comm, 1, MPI::INT, index, rank);
      std::cout<<"#"<<rank-1<<" Got "<<comm<<" from "<<index<<"\n";
    }

  comm = rank;
  for (index = rank + 1; (index < np); index++)
    {
      MPI::COMM_WORLD.Send(&comm, 1, MPI::INT, index, index);
    }
   
  MPI::Finalize();
}