platform2

local arg = {...}

local dim = arg[1]
turtle.select(1)
for n=1,dim do
    for m=1,dim-1 do
        if turtle.getItemCount() == 0 then
            turtle.select(turtle.getSelectedSlot() + 1)
        end
        turtle.placeDown()
        turtle.forward()
    end
    turtle.placeDown()

    if math.fmod(n,2) == 0 then
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
    else
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()

    end
end