021期：24码<<02,04,05,07,09,12,14,17,19,20,21,22,23,24,27,28,30,32,35,38,40,42,48,49》开：42对
022期：24码<<01,02,03,04,07,08,09,13,15,21,27,32,34,35,36,38,39,41,42,43,44,45,47,48》开：18错
023期：24码<<01,04,05,07,10,11,13,18,21,23,24,28,33,34,35,37,38,40,43,44,45,46,48,49》开：47错
024期：24码<<02,04,08,09,10,11,12,14,16,22,27,28,31,32,35,36,37,39,40,41,42,44,45,46》开：**