169期：→№←【03,04,07,08,09,11,15,17,20,26,31,33,34,35,37,38,40,41,42,43,44,45,46,47】开：45对
170期：→№←【01,02,04,05,11,12,16,19,20,23,24,25,27,28,30,31,32,35,36,37,38,39,42,45】开：10错
171期：→№←【02,03,04,05,06,08,09,12,16,18,21,24,28,30,32,33,35,37,40,43,44,46,47,49】开：16对
172期：→№←【02,03,06,08,12,16,17,18,19,20,21,22,25,26,27,31,33,34,40,41,43,46,47,49】开：**