sos

function krotki()
    redtone.setOutput("back", true)
    os.sleep(0.3)
    redstone.setOutput("back", false)
    os.sleep(0.3)
end

function dlugi()
    redtone.setOutput("back", true)
    os.sleep(0.3)
    redstone.setOutput("back", false)
    os.sleep(0.3)
end

funtion s()
    krotki()
    krotki()
    krotki()
end

funtion o()
    dlugi()
    dlugi()
    dlugi()
end