275期：((01,03,07,13,15,16,21,24,31,32,36,42,43,44,45,47))开：45准
276期：((01,05,09,14,16,17,20,23,25,28,31,33,35,39,42,45))开：09准
277期：((01,05,11,12,14,15,16,23,24,25,35,36,42,44,45,49))开：16准
278期：((03,04,07,09,13,17,21,23,24,32,37,38,40,42,43,45))开：28错
279期：((04,05,08,09,11,12,19,21,23,25,27,28,31,32,34,48))开：==？