021期：一条龙[[04,05,06,07,10,12,13,15,17,21,22,24,28,29,30,31,32,36,38,39,40,42,45,47]]开：07准
022期：一条龙[[06,08,09,12,14,15,16,20,22,23,24,25,29,33,34,36,38,39,40,41,44,45,46,49]]开：18错
023期：一条龙[[01,05,06,09,11,12,13,14,15,18,19,20,22,25,28,29,30,31,33,36,37,43,47,49]]开：？