排除前区:02,06,12,14,15,20,24,34=0-1
排除后区:01,02,09,11
B:龙头凤尾:
龙头关注:01或05
凤尾关注:33或35
C:前区方案:
a-10码:01,03,07,09,16,18,28,30,33,35
b-14码:01,03,07,09,16,18,19,21,25,28,29,30,33,35
c-18码:01,03,04,07,08,09,10,11,16,18,19,21,25,28,29,30,33,35
D:后区方案:
后区2码:06,08
后区4码:06,08,10,12
后区6码:03,06,07,08,10,12
(个人观点,仅供参考!)