273期：→№←【02,03,04,05,08,09,11,12,13,15,19,20,21,22,25,27,29,32,34,35,36,39,40,48】开：05对
274期：→№←【01,04,05,06,07,08,11,13,19,23,24,26,27,30,31,33,35,39,40,41,44,45,48,49】开：24对
275期：→№←【01,04,05,09,10,11,12,13,14,18,20,22,23,24,25,27,31,34,35,36,38,47,48,49】开：31对
276期：→№←【01,02,03,05,10,11,13,14,15,16,18,24,25,28,29,30,31,32,34,36,37,38,44,45】开：01对
277期：→№←【06,09,10,11,13,16,17,19,21,22,26,27,29,30,32,34,38,39,40,42,45,46,47,48】开：**