Light decider

local wmodem = peripheral.wrap("top")
local modem = peripheral.wrap("right")
wmodem.open(55002)
sleep(1)
modem.transmit(56002, 3, "ON")
redstone.setOutput("left",false)
while true do


event, s, f, rf, msg = os.pullEvent("modem_message")


if msg == "OFF" then
    redstone.setOutput("left",true)
    print(""..msg)
    modem.transmit(56002, 3, "OFF")
end
if msg == "ON" then
    redstone.setOutput("left",false)
    print(""..msg)
    modem.transmit(56002, 3, "ON")
end
end