local modem = peripheral.wrap("top")
modem.open(9999);
print("Ready.9999")
while true do
	local event, modemSide, senderChannel, replyChannel, message, senderDistance = os.pullEvent("modem_message")
	print(message)
	if message == 1 then
		rs.setOutput("left", true)
		os.sleep(0.2)
		rs.setOutput("left", false)
	end
	if message == 2 then
		rs.setOutput("back", true)
		os.sleep(0.2)
		rs.setOutput("back", false)
	end
	if message == 3 then
		rs.setOutput("right", true)
		os.sleep(0.2)
		rs.setOutput("right", false)
	end
end