A:排除号码:
排除前区:03,05,07,12,14,20,22,31=0-1
排除后区:02,04,09,10
B:龙头凤尾:
龙头关注:02或04
凤尾关注:33或34
C:前区方案:
a-10码:02,04,08,19,21,28,30,32,33,34
b-14码:02,04,08,17,18,19,21,23,24,28,30,32,33,34
c-18码:01,02,04,08,09,13,15,17,18,19,21,23,24,28,30,32,33,34
D:后区方案:
后区2码:01,03
后区4码:01,03,05,08
后区6码:01,03,05,08,11,12