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：17对
276期：（寻码）《01,03,04,05,06,10,11,13,15,16,18,21,23,24,27,28,32,35,36,39,43,44,46,48》开：14错
277期：（寻码）《03,04,05,08,09,10,14,16,19,20,22,24,27,30,31,32,34,35,37,39,41,43,48,49》开：11错
278期：（寻码）《03,06,07,09,10,11,12,18,19,21,23,25,27,30,31,34,35,36,40,43,44,45,46,48》开：？？