253期：24码<<01,03,05,06,12,13,16,19,21,22,23,25,26,27,28,32,33,34,37,41,42,43,48,49》开：19对
254期：24码<<02,04,05,08,10,11,12,14,17,18,21,22,23,24,26,30,31,33,34,37,40,43,44,48》开：13错
255期：24码<<01,02,03,04,10,11,14,15,17,20,22,26,27,28,31,35,37,39,40,41,45,47,48,49》开：33错
256期：24码<<02,04,06,07,08,09,11,15,17,20,22,24,29,30,32,33,35,37,39,43,44,46,47,49》开：35对
257期：24码<<03,04,05,06,07,08,11,13,17,19,20,21,26,27,30,34,36,37,41,42,44,45,47,48》开：**