#include<mpi.h>
#include<stdio.h>
#define MCW MPI_COMM_WORLD
int main(int argc, char **argv)
{
	MPI_Init(&argc,&argv);
	int size,rank;
	MPI_Comm_size(MCW,&size);
	MPI_Comm_rank(MCW,&rank);
	char proc[20];
	int l;
	MPI_Get_processor_name(proc,&l);
	if (rank ==0)
		printf("I'm process %d, I'm Master\n",rank);
	else
		printf("I'm process %d, I'm slave\n",rank);
	MPI_Finalize();
}