Stripmine Advanced

local args = {...}
length = args[1]

function dig()
        while turtle.detect() do
            turtle.dig()
            os.sleep(0.5)
        end
end
function digUp()
        while turtle.detectUp() do
            turtle.digUp()
            os.sleep(0.5)
        end
end
function forward()
    while turtle.forward()==false do
        os.sleep(1)
        dig()
    end
end
function clear()
	dig()
	forward()
	digUp()
end
-------------
digUp()
for x=1,length,1 do
	for i=1,2,1 do
		clear()
	end
	turtle.turnRight()
	for i=1,5,1 do
		clear()
	end
	turtle.turnRight()
	turtle.turnRight()
	for i=1,5,1 do
		forward()
	end
	for i=1,5,1 do
		clear()
	end
	turtle.turnRight()
	turtle.turnRight()
	for i=1,5,1 do
		forward()
	end
	turtle.turnRight()
	forward()
	forward()
	turtle.select(1)
	turtle.place()
	turtle.turnRight()
	turtle.turnRight()
	forward()
	forward()
	clear()
end