A:排除号码:
排除前区:01,02,03,04,08,16,21,27=0-1
排除后区:02,05,06,09
B:龙头凤尾:
龙头关注:05或06
凤尾关注:30或31
C:前区方案:
a-10码:05,06,13,14,15,22,24,25,30,31
b-14码:05,06,13,14,15,22,23,24,25,28,30,31,34,35
c-18码:05,06,13,14,15,18,19,20,22,23,24,25,28,29,30,31,34,35
D:后区方案:
后区2码:01,03
后区4码:01,03,08,12
后区6码:01,03,08,10,11,12