run = true
x = 0

while true do
	if turtle.detectDown() and x == 0 then
		turtle.up()
		turtle.select(2)
		x = x + 1
	elseif x < 5 then
		turtle.placeDown()
		turtle.forward()
		x = x + 1
	elseif x == 5 then
		turtle.turnRight()
		turtle.forward()
	elseif x >= 5 and x < 9 then
		turtle.placeDown()
		turtle.forward()
		x = x + 1
	elseif x == 9 then
		turtle.turnRight()
		turtle.forward()
	elseif x >= 9 and x < 13 then
		turtle.placeDown()
		turtle.forward()
		x = x + 1
	elseif x == 13 then
		turtle.turnRight()
		turtle.forward()
	elseif x >= 13 and x < 17 then
		turtle.placedown()
		turtle.forward()
		x = x + 1
	elseif x == 16 then
		print("Build should be finished")
		run = false
	else
		print("ERROR")
		run = false
	end

end