print("how high:")
height = io.read()

size = 0
c = 1
function check()

	checkerfalg = true
	checkercount = 0

	for x = 1, 16 do
		if turtle.getItemCount(x) == 0 then
			checkercount = checkercount + 1
		else
			turtle.select(x)
		end
	end

	if checkercount == 16 then
		checkerfalg == false
	end


	if checkerfalg == false then
		turtle.turnRight()
		turtle.back()
		repeat
			turtle.down()
		until turtle.detectDown() == true

		repeat
			shell.run("clear")
			print("ready? restalked?")
			answer = io.read()
		until answer == "yes"

		repeat
			turtle.up()
		until turtle.detect() == false
		turtle.up()
		turtle.forward()
		turtle.turnLeft()

	end
end

repeat
	turtle.forward()
	size = size + 1
until turtle.detectDown() == false

size = size - 1



for i = 0, size do
	turtle.back()
end

for u = 1, height do
	for p = 1, 5 do
		for u = 1, size do
			check()
			turtle.placeDown()
			turtle.forward()
			turtle.placeDown()
		end
	turtle.turnRight()
	end
	turtle.up()
end