a:排除号码:
排除前区:09,10,11,14,18,21,29,32=0-1
排除后区:01,05,06,08
b:龙头凤尾:
龙头关注:01或03
凤尾关注:26或28
c:前区方案:
a-10码:01,03,07,13,15,17,25,26,28
b-14码:01,03,07,13,15,17,20,22,25,26,27,28,30
c-18码:01,02,03,07,08,13,15,16,17,19,20,22,25,26,27,28,30,34
d:后区方案:
后区2码:02,04
后区4码:02,04,09,11
后区6码:02,03,04,07,09,11