A:排除号码:
排除前区:03,10,17,18,21,25,28,30=0-1
排除后区:01,02,04,08
B:龙头凤尾:
龙头关注:04或05
凤尾关注:32或34
C:前区方案:
a-10码:04,05,06,11,14,23,26,31,32,34
b-14码:01,02,04,05,06,09,11,12,14,23,26,31,32,34
c-18码:01,02,04,05,06,09,11,12,13,14,15,22,23,26,31,32,34,35D:后区方案:
后区2码:05,07
后区4码:05,07,10,11
后区6码:03,05,06,07,10,11