A:排除号码:
排除前区:02,04,10,15,16,20,33,34=0-1
排除后区:01,05,07,12
B:龙头凤尾:
龙头关注:06或08
凤尾关注:28或30
C:前区方案:
a-10码:06,08,09,13,17,19,25,26,28,30
b-14码:06,08,09,13,17,18,19,21,22,24,25,26,28,30
c-18码:03,05,06,07,08,09,13,14,17,18,19,21,22,24,25,26,28,30
D:后区方案:
后区2码:02,04
后区4码:02,04,09,10