260期：《《03,04,10,18,19,20,23,24,25,26,32,38,40,43,46,49》》开：20对
261期：《《03,04,06,08,12,13,21,25,32,33,34,37,40,41,43,44》》开：24错
262期：《《03,09,10,11,15,16,18,19,20,23,26,27,32,33,41,48》》开：30错
263期：《《01,06,09,11,13,14,17,22,25,32,33,36,42,44,45,48》》开：09对
264期：《《03,12,13,14,17,18,21,22,25,26,29,31,33,38,41,46》》开：21对
265期：《《16,17,18,21,23,25,30,31,32,37,38,40,41,47,48,49》》开：？？