floor2

parity = true
len = {...}
if #len == 0 then
	print("USAGE: floor2 size")
end
len = tonumber(len[1])

for x=1,len do
	for y=1,len do
		done = false
		i = 1
		while not done do
			if turtle.getItemCount(i) ~= 0 then
				turtle.select(i)
				done = true
			end
			i = i + 1
		end
		turtle.placeDown()
		turtle.forward()
	end
	if parity then
		turtle.turnRight()
		turtle.placeDown()
		turtle.forward()
		turtle.turnRight()
	else
		turtle.turnLeft()
		turtle.placeDown()
		turtle.forward()
		turtle.turnLeft()
	end
	parity = not parity
end