local num=4
local lim=100
local count=0
local selectnum=0

num = num-1

turtle.select(1)


while 1==1 do

	turtle.up()

	for j=1,4 do
		for i=1,num do



			if turtle.getItemCount() == 0 then
				selectNum = turtle.getSelectedSlot()
				if selectNum == 16 then
					selectNum = 0
				end
				turtle.select(selectNum+1)
			end
			turtle.placeDown()
			turtle.forward()


			if i == num then
				turtle.turnRight()
			end
		end
	end

	turtle.back()
	turtle.turnLeft()
	turtle.forward()
	turtle.turnRight()
	num = num + 2

end