311期：（（02,07,08,14,20,25,26,27,29,36,37,38,42,43,45,48））开：37中中中
312期：（（02,07,08,09,10,13,16,24,27,30,31,33,38,41,43,48））开：14错错错
313期：（（06,11,13,16,20,25,26,28,34,35,38,41,44,45,46,49））开：38中中中
314期：（（04,05,06,09,11,12,15,20,21,23,27,34,41,43,48,49））开：中？
