273期：<<03,04,12,16,18,23,24,25,26,29,38,44,45,47,48,49>>开：04中中中
274期：<<02,06,07,11,13,20,22,23,25,29,31,32,39,43,44,48>>开：44中中中
275期：<<02,06,07,10,11,15,16,23,24,25,29,32,34,36,39,44>>开：45错错错
276期：<<05,06,07,08,10,11,16,19,21,22,27,28,30,36,39,47>>开：09错错错
277期：<<02,05,06,07,08,13,14,16,22,24,30,32,34,39,41,47>>开：中？