A:排除号码:
排除前区:01,07,10,13,20,28,30,33=0-1
排除后区:01,03,07,12
B:龙头凤尾:
龙头关注:05或06
凤尾关注:25或27
C:前区方案:
a-10码:05,06,08,15,17,19,23,24,25,27
b-14码:03,05,06,08,14,15,16,17,18,19,23,24,25,27
c-18码:03,05,06,08,14,15,16,17,18,19,22,23,24,25,26,27,31,34D:后区方案:
后区2码:09,11
后区4码:08,09,10,11
后区6码:02,05,08,09,10,11