turtle.select(1)
turtle.refuel(1)
local counter = 0
local counter2 = 0
local counter3 = 0

while counter3 ~= 9 do
	turtle.select(2)
	turtle.digDown()
	turtle.placeDown()
	turtle.forward();
	counter = counter + 1

	if counter == 8 then
		if counter2 == 0 then
			turtle.turnLeft()
			turtle.digDown()
			turtle.placeDown()
			turtle.forward()
			turtle.turnLeft()
			counter2 = 1
		elseif counter2 == 1 then
			turtle.turnRight()
			turtle.digDown()
			turtle.placeDown()
			turtle.forward()
			turtle.turnRight()
			counter2 = 0
		end
		counter3 = counter3 + 1
		counter = 0
	end
end