a:排除号码:
排除前区:01,08,10,16,21,22,33,34=0-1
排除后区:03,06,09,11
b:龙头凤尾:
龙头关注:02或04
凤尾关注:28或29
c:前区方案:
a-10码:02,04,11,12,17,23,25,27,28,29
b-14码:02,04,09,11,12,14,15,17,23,24,25,27,28,29
c-18码:02,03,04,05,06,07,09,11,12,14,15,17,23,24,25,27,28,29
d:后区方案:
后区2码:02,05
后区4码:02,05,07,12
后区6码:01,02,04,05,07,12