local modem = peripheral.wrap("left")
print("Bienvenu dans le proggrame de gestion des robot MK1")
sleep(1)
print("Initialisation en cours :")
sleep(1)
print()
print("Quelle port utiliser ?")
port = read()
modem.open(3)

print("Initialisation terminer")
sleep(2)
clear
print("Recheche du serveur ")

local event, modemSide, senderChannel,
  replyChannel, message, senderDistance = os.pullEvent("modem_message")

print("I just received a message on channel: "..senderChannel)
print("I should apparently reply on channel: "..replyChannel)
print("The modem receiving this is located on my "..modemSide.." side")
print("The message was: "..message)
print("The sender is: "..(senderDistance or "an unknown number of").." blocks away from me.")