a:排除号码:
排除前区:01,04,08,13,25,26,32,35=0-1
排除后区:02,05,07,11
b:龙头凤尾:
龙头关注:06或09
凤尾关注:28或30
c:前区方案:
a-10码:06,09,10,12,14,21,22,23,28,30
b-14码:06,09,10,11,12,14,16,17,20,21,22,23,28,30
c-18码:02,03,06,09,10,11,12,14,16,17,20,21,22,23,27,28,30,31
d:后区方案:
后区2码:01,03
后区4码:01,03,08,10
后区6码:01,03,04,08,10,12