A:排除号码:
排除前区:03,06,07,10,14,16,30,34=0-1
排除后区:03,05,10,12
B:龙头凤尾:
龙头关注:02或04
凤尾关注:31或33
C:前区方案:
a-10码:02,04,13,18,19,24,25,29,31,33
b-14码:02,04,13,17,18,19,23,24,25,26,29,31,32,33 7
c-18码:02,04,12,13,15,17,18,19,22,23,24,25,26,27,29,31,32,33
D:后区方案:
后区2码:09,11
后区4码:01,02,09,11