A:排除号码:
排除前区:01,04,05,09,10,11,34,35=0-1
排除后区:01,03,05,12
B:龙头凤尾:
龙头关注:06或12
凤尾关注:26或27
C:前区方案:
a-10码:06,12,13,17,19,20,22,24,26,27
b-14码:02,06,08,12,13,16,17,19,20,22,24,26,27,29
c-18码:02,06,08,12,13,15,16,17,18,19,20,22,24,26,27,29,30,31D:后区方案:
后区2码:02,04
后区4码:02,04,09,11
后区6码:02,04,06,07,09,11