252期：→№←【03,04,05,06,08,09,11,13,14,21,23,25,27,28,29,30,31,36,38,39,40,44,48,49】开：36对
253期：→№←【01,02,05,07,11,13,15,16,20,21,23,24,26,27,29,30,33,34,40,42,43,44,48,49】开：47错
254期：→№←【04,05,06,07,08,10,11,12,13,14,18,23,24,26,28,30,31,32,35,36,38,40,41,44】开：**
