排除前区:01,02,04,09,20,24,28,34=0-1
排除后区:01,04,07,10
B:龙头凤尾:
龙头关注:07或08
凤尾关注:32或35
C:前区方案:
a-10码:07,08,10,13,15,18,22,26,32,35
b-14码:07,08,10,12,13,15,18,22,26,27,30,31,32,35
c-18码:07,08,10,12,13,15,17,18,19,21,22,26,27,29,30,31,32,35
D:后区方案:
后区2码:11,12
后区4码:08,09,11,12
后区6码:02,03,08,09,11,12