Clearwallsquare

local arg = {...}
local dim = arg[1]
local block,type = turtle.inspectDown()

while type.name ~= "minecraft:bedrock" do
    for m=1,4 do
        for m=1,dim-1 do
            turtle.dig()
            turtle.digDown()
            turtle.forward()
        end
        turtle.turnRight()
    end

    turtle.digDown()
    turtle.down()
    block,type = turtle.inspectDown()

end