A:排除号码:
排除前区:01,02,05,08,21,26,27,31=0-1
排除后区:03,06,08,12
B:龙头凤尾:
龙头关注:04或06
凤尾关注:32或34
C:前区方案:
a-10码:04,06,07,10,12,14,16,30,32,34
b-14码:04,06,07,10,12,14,16,22,24,28,29,30,32,34
c-18码:04,06,07,09,10,11,12,14,16,17,20,22,24,28,29,30,32,34
D:后区方案:
后区2码:05,07
后区4码:02,04,05,07
后区6码:01,02,04,05,07,11