268期：<<03,05,06,09,15,20,24,29,30,32,35,36,38,40,42,44>>开：40中中中
269期：<<01,04,10,11,15,17,18,22,25,27,32,34,39,42,43,49>>开：22中中中
270期：<<02,06,11,17,22,23,24,29,32,36,37,38,39,42,44,49>>开：19错错错
271期：<<01,05,06,08,09,14,15,16,23,25,28,30,38,42,45,48>>开：中？