A:排除号码:
排除前区:04,05,11,20,21,27,29,35=0-1
排除后区:03,05,07,08
B:龙头凤尾:
龙头关注:02或10
凤尾关注:31或34
C:前区方案:
a-10码:02,10,14,16,19,23,24,30,31,34
b-14码:02,07,08,10,12,14,16,18,19,23,24,30,31,34
c-18码:02,07,08,10,12,13,14,15,16,18,19,23,24,28,30,31,33,34
D:后区方案:
后区2码:04,06
后区4码:04,06,11,12
后区6码:01,02,04,06,11,12