-- Code for Recieving PCs

function listen()
local modem = peripheral.wrap("right")
modem.open(3)
local event, modemSide, senderChannel,
  replyChannel, message, senderDistance = os.pullEvent("modem_message")
 modem.close(3)
end

function box1()
print("Box 1")
--[[redstone.setOutput("back", true)
os.sleep(99)
redstone.setOutput("back", false)
listen()]]--
end

function box2()
print("Box 2")
--[[redstone.setOutput("back", true)
os.sleep(99)
redstone.setOutput("back", false)
listen()]]--
end

function box3()
print("Box 3")
--[[redstone.setOutput("back", true)
os.sleep(99)
redstone.setOutput("back", false)
listen()]]--
end

function CheckMessage(message1)
	if message1 == box1
	 then
	 print("ok1")
	 box1()
	elseif message1 == box2
	then
	print("ok2")
	 box2()
	elseif message == box3
	then
	print("ok3")
	 box3()
	else
	end
end

listen()
CheckMessage(message)