268期:[[01,03,04,05,10,15,17,22,29,33,39,42,44,46,47,49]]开:22有
269期:[[02,04,05,10,11,15,19,22,23,28,31,37,38,39,45,48]]开:11有
270期:[[03,05,06,09,11,14,16,20,21,25,28,29,30,33,42,49]]开:42有
271期:[[02,03,05,07,08,09,18,22,25,27,29,31,35,36,38,42]]开:40无
272期:[[08,09,10,11,13,17,19,24,25,26,27,31,32,33,34,39]]开:30无
273期:[[03,08,09,10,12,14,15,19,22,27,31,32,34,41,43,47]]开:==?