020期：≤特别的24码≥：01,03,05,06,07,12,13,16,17,20,22,24,31,32,33,34,35,37,38,39,40,42,44,49，开：33中
021期：≤特别的24码≥：02,06,08,11,13,14,16,17,18,21,22,23,24,26,27,28,31,32,35,37,39,43,45,48，开：32中
022期：≤特别的24码≥：01,04,11,12,13,14,15,16,17,18,19,21,24,26,30,31,33,35,39,40,42,44,45,49，开：09错
023期：≤特别的24码≥：01,02,03,05,06,08,14,17,21,23,24,28,30,31,32,33,35,37,38,39,42,44,45,49，开：01中
024期：≤特别的24码≥：02,03,08,09,10,11,13,15,17,19,20,25,26,27,28,30,34,37,38,39,41,43,45,48，开：23错
025期：≤特别的24码≥：02,09,11,12,14,17,18,19,20,21,22,25,26,29,30,31,36,37,39,42,45,46,48,49，开：00