302期：→№←【01,03,06,07,10,12,13,15,18,19,20,21,22,24,27,28,29,30,34,35,38,41,44,49】开：22对
303期：→№←【01,02,03,05,06,08,11,14,15,16,17,18,20,22,23,30,31,32,36,40,41,44,48,49】开：15对
304期：→№←【02,03,04,08,09,18,20,21,22,23,24,25,27,32,33,35,37,40,41,42,44,46,48,49】开：48对
305期：→№←【02,03,04,06,07,09,10,11,12,17,24,25,26,27,28,35,38,39,44,45,46,47,48,49】开：42错
306期：→№←【02,05,07,09,10,12,13,15,16,17,18,19,21,30,31,32,35,38,41,42,43,44,47,49】开：**