249期：＜24码＞（02,04,05,10,12,15,16,17,19,20,22,28,30,31,32,33,34,37,39,40,42,46,47,48）开：31对
250期：＜24码＞（03,04,07,11,17,19,21,22,23,24,27,29,30,31,33,34,36,37,39,41,43,44,45,48）开：42错
251期：＜24码＞（01,02,06,08,09,10,11,17,21,23,25,26,27,28,31,32,34,35,36,38,42,43,45,48）开：13错
252期：＜24码＞（01,03,04,08,09,11,12,15,16,18,25,26,27,28,29,33,34,37,38,39,41,42,46,49）开：00