252期：→№←【01,02,05,08,10,16,20,21,22,23,25,29,31,32,33,36,37,38,40,41,42,45,46,48】开：23对
253期：→№←【03,04,08,10,13,14,15,16,23,26,28,29,30,32,33,34,35,36,38,40,41,45,46,49】开：33对
254期：→№←【01,04,06,07,12,15,16,18,19,21,22,23,24,26,27,29,31,33,34,35,36,42,46,49】开：17错
255期：→№←【01,03,04,05,09,10,12,14,16,17,19,21,23,25,27,28,29,32,35,36,38,39,41,49】开：42错
256期：→№←【02,03,04,05,07,09,10,12,13,14,15,17,19,20,25,28,29,32,34,38,39,41,46,48】开：**