020期：<<01,14,21,24,25,26,27,31,33,34,35,37,40,45,47,49>>开：33中中中
021期：<<04,08,09,10,20,23,28,31,32,37,39,42,45,46,47,48>>开：12错错错
022期：<<13,15,16,17,18,19,22,24,27,33,34,37,38,39,40,41>>开：34中中中
023期：<<01,02,03,04,07,08,09,16,22,23,34,36,41,44,47,48>>开：中？