import message as ms

ms.setup_connection()

rank = ms.node_id

nodes = ms.n_node

nxt = (rank+1)%nodes

pre = (rank-1+nodes)%nodes

print "My ID is", rank

ms.send(nxt, "Next to %i is %i" % (rank, nxt))

msg = ms.recv(pre)

print msg

ms.close_connection()