284期：→№←【02,03,05,06,07,09,12,15,17,19,20,21,24,25,33,34,36,37,38,39,40,42,43,44】开：17对
285期：→№←【01,07,13,14,15,17,18,19,20,21,22,27,29,30,32,34,38,39,40,41,43,45,48,49】开：33错
286期：→№←【01,02,07,17,18,19,21,22,25,27,29,30,31,32,34,38,41,42,43,44,45,46,48,49】开：39错
287期：→№←【04,05,06,10,11,13,14,15,17,21,23,24,25,26,27,29,30,31,35,41,43,44,45,47】开：**