A:排除号码:
排除前区:01,02,04,05,14,16,22,28=0-1
排除后区:01,03,08,12
B:龙头凤尾:
龙头关注:03或06
凤尾关注:31或32
C:前区方案:
a-10码:10,13,15,17,18,23,24,29,31,32
b-14码:03,06,07,09,10,13,15,17,18,23,24,29,31,32
c-18码:03,06,07,09,10,11,13,15,17,18,19,23,24,26,27,29,31,32D:后区方案:
后区2码:02,04
后区4码:02,04,10,11
后区6码:02,04,05,09,10,11