Well

function place()
	turtle.select(1)
	turtle.place()

	turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
	turtle.select(3)
	turtle.place()

	turtle.up()
	turtle.select(3)
	turtle.place()

	turtle.turnLeft()
	turtle.forward()
	turtle.turnRight()
	turtle.select(2)
	turtle.place()

	turtle.turnRight()
	turtle.select(4)
	turtle.place()
	turtle.turnLeft()

	sleep(20)

	turtle.select(2)
	turtle.dig()

	turtle.turnRight()
	turtle.select(4)
	turtle.dig()
	turtle.forward()

	turtle.turnLeft()
	turtle.select(2)
	turtle.dig()

	turtle.down()
	turtle.select(2)
	turtle.dig()

	turtle.turnLeft()
	turtle.forward()
	turtle.turnRight()
	turtle.select(1)
	turtle.dig()
	turtle.forward()
	os.run({}, "startup")
end

while true do
place()
end