272期：（寻码）《01,02,03,04,05,07,12,13,15,19,22,25,30,33,34,35,36,37,41,42,45,46,47,48》开：02对
273期：（寻码）《01,02,03,04,06,08,10,12,13,19,22,23,26,27,29,32,35,36,37,40,43,46,47,48》开：05错
274期：（寻码）《03,04,06,09,10,13,14,15,16,17,22,27,31,32,33,34,36,39,42,43,44,45,47,49》开：33对
275期：（寻码）《02,05,07,08,09,15,16,17,18,21,23,25,26,28,31,35,37,39,40,41,42,44,45,47》开：？？