306期：((02,04,12,13,14,20,26,31,32,33,35,36,38,40,46,47))开：31准
307期：((02,03,08,09,19,20,24,28,29,31,32,37,41,42,43,45))开：22错
308期：((05,07,09,10,13,18,20,22,25,29,30,31,36,40,44,49))开：18准
309期：((01,02,07,15,16,21,25,28,31,33,38,42,43,44,45,46))开：49错
310期：((02,03,04,06,10,13,14,15,16,19,21,25,30,37,41,44))开：==？