A:排除号码:
排除前区:03,04,07,11,13,17,19,35=0-1
排除后区:01,02,07,08
B:龙头凤尾:
龙头关注:02或09
凤尾关注:29或31
C:前区方案:
a-10码:02,09,15,20,22,24,26,28,29,31
b-14码:02,09,10,14,15,20,22,24,25,26,27,28,29,31
c-18码:02,08,09,10,14,15,16,18,20,22,23,24,25,26,27,28,29,31
D:后区方案:
后区2码:10,12
后区4码:04,05,10,12
后区6码:04,05,09,10,11,12