Elevator Receiver

while true do
rednet.open("left")
ID, msg, distance = rednet.receive()
    if msg == "L" then
        rs.setOutput("right", false)
    else if msg == "B" then
        rs.setOutput("right", false)
    else if msg == "2" then
        rs.setOutput("right", true)
    else if msg == "3" then
        rs.setOutput("right", false)
    else if msg == "4" then
        rs.setOutput("right", false)
    else if msg == "5" then
        rs.setOutput("right", false)
    end
    end
    end
    end
    end
end
end