275期：{{01,02,04,09,12,16,17,24,27,29,30,33,36,37,41,42}}开：24准
276期：{{01,04,05,10,11,13,16,22,26,29,30,32,43,46,48,49}}开：43准
277期：{{02,03,09,10,12,14,15,18,23,27,29,31,36,39,40,41}}开：48错
278期：{{01,07,08,15,20,21,22,24,25,28,30,31,33,40,43,44}}开：22准
279期：{{05,08,11,16,18,19,20,23,24,28,30,32,40,41,44,49}}开：00