Wall

local arg = {...}
local dim = arg[1]
local height = arg[2]
turtle.select(1)
for m=1,height do
    turtle.up()
    for n=1,4 do
        for o=1,dim-1 do
            if turtle.getItemCount() == 0 then
                turtle.select(turtle.getSelectedSlot() + 1)
            end
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnRight()
    end
end