A:排除号码:
排除前区:01,04,07,12,15,18,27,33=0-1
排除后区:02,04,10,12
B:龙头凤尾:
龙头关注:06或09
凤尾关注:30或32
C:前区方案:
a-10码:06,09,10,17,20,21,24,29,30,32
b-14码:02,03,05,06,09,10,16,17,20,21,24,29,30,32
c-18码:02,03,05,06,09,10,16,17,20,21,23,24,25,29,30,31,32,35D:后区方案:
后区2码:03,05
后区4码:03,05,09,11
后区6码:01,03,05,06,09,11