260期：→№←【01,08,09,11,12,14,16,19,20,21,22,23,25,26,27,32,33,34,36,37,40,45,46,48】开：20对
261期：→№←【01,02,03,05,07,08,12,13,14,15,18,20,29,30,33,34,37,38,39,41,42,44,46,49】开：24错
262期：→№←【01,02,03,04,06,07,09,13,14,15,18,19,20,22,25,26,28,33,35,37,38,45,47,49】开：**