run = true
x = 0

while true do
	if turtle.detectDown() and x == 0 then
		turtle.up()
		turtle.select(2)
		turtle.placeDown()
		turtle.forward()
		x = x + 1
	elseif x == 4 then
		turtle.turnRight()
		turtle.forward()
		turtle.placeDown()
		x = x + 1
	elseif x == 8 then
		turtle.turnRight()
		turtle.forward()
		turtle.placeDown()
		x = x + 1
	elseif x == 12 then
		turtle.turnRight()
		turtle.forward()
		turtle.placedown()
		x = x + 1
	elseif x == 15 then
		print("Build should be finished")
		run = false
	else
		run = false
		print("ERROR")
	end

end