247期：＝24码＝【04,05,06,07,08,10,13,14,16,19,21,26,28,31,32,35,36,37,39,40,43,45,46,49】开：40中
248期：＝24码＝【02,03,05,07,14,15,16,17,18,20,21,23,26,28,29,32,33,34,36,37,40,41,45,47】开：20中
249期：＝24码＝【02,03,05,07,08,12,19,20,21,22,23,26,27,28,31,34,37,39,40,44,45,47,48,49】开：23中
250期：＝24码＝【01,02,04,08,09,11,12,18,19,21,22,25,26,27,29,30,31,32,33,35,36,42,43,48】开：14错
251期：＝24码＝【02,05,06,08,10,11,12,13,16,17,18,19,21,22,23,27,29,31,32,38,39,45,46,48】开：？？