247期：=【03,04,05,09,10,11,13,15,17,18,20,23,25,26,27,31,32,33,34,35,36,39,40,42,43,46,48,49】开：40准
248期：=【04,07,08,10,11,13,15,16,18,19,22,23,24,26,28,29,30,33,34,35,36,37,38,42,43,44,47,48】开：20错
249期：=【02,03,04,07,08,09,10,11,13,14,15,16,17,20,22,23,27,29,32,33,35,36,37,40,42,44,46,47】开：23准
250期：=【02,03,04,05,08,11,12,14,16,17,18,21,23,24,26,27,28,29,30,31,35,36,37,38,40,45,47,48】开：14准
251期：=【01,04,07,08,10,11,13,17,18,20,21,22,23,25,28,33,35,36,39,40,41,42,43,44,45,46,47,48】开：？