a:排除号码:
排除前区:07,12,14,19,25,28,34,35=0-1
排除后区:03,07,08,11
b:龙头凤尾:
龙头关注:02或04
凤尾关注:32或33
c:前区方案:
a-10码:02,04,08,10,15,17,23,27,32,33
b-14码:02,04,08,10,13,15,17,20,21,23,26,27,32,33
c-18码:01,02,04,08,09,10,11,13,15,16,17,20,21,23,26,27,32,33
d:后区方案:
后区2码:02,04
后区4码:02,04,06,09
后区6码:01,02,04,05,06,09