Receiver Program

rednet.open("right")
while true do
    id,msg = rednet.receive()
    print(msg)
    if (msg == "up") then
        redstone.setOutput("top", true)
        redstone.setOutput("bottom", false)
    elseif (msg == "down") then
        redstone.setOutput("top", false)
        redstone.setOutput("bottom", true)
    end
end