a:排除号码:
排除前区:02,05,06,10,21,22,29,31=0-1
排除后区:08,10,11,12
b:龙头凤尾:
龙头关注:11或13
凤尾关注:28或32
c:前区方案:
a-10码:11,13,14,15,17,19,24,27,28,32
b-14码:01,03,04,07,11,13,14,15,17,19,24,27,28,32
c-18码:01,03,04,07,08,11,13,14,15,17,19,20,24,27,28,32,33,35
d:后区方案:
后区2码:07,09
后区4码:05,06,07,09
后区6码:01,02,05,06,07,09