d

rednet.open("top")
while true do
    local sender, message, protocol = rednet.receive()
    if message == "die" then
        rs.setOutput("back", true)
        sleep(5.0)
        rs.setOutput("back", false)
    elseif message == "die2" then
        rs.setOutput("back", true)
        sleep(5.0)
        rs.setOutput("back", false)
    end
    os.sleep(1)
end