A:排除号码:
排除前区:02,08,13,17,24,29,31,33=0-1
排除后区:01,02,05,12
B:龙头凤尾:
龙头关注:03或05
凤尾关注:32或34
C:前区方案:
a-10码:03,05,07,09,21,26,28,30,32,34
b-14码:01,03,05,07,09,18,20,21,22,26,28,30,32,34
c-18码:01,03,04,05,06,07,09,11,15,18,20,21,22,26,28,30,32,34
D:后区方案:
后区2码:07,09
后区4码:07,09,10,11
后区6码:03,04,07,09,10,11