a:排除号码:
排除前区:01,05,08,09,13,17,19,33=0-1
排除后区:01,02,08,10
b:龙头凤尾:
龙头关注:02或07
凤尾关注:27或29
c:前区方案:
a-10码:02,07,10,12,14,16,23,25,27,29
b-14码:02,07,10,12,14,16,20,23,25,26,27,28,29,31
c-18码:02,07,10,11,12,14,15,16,20,22,23,24,25,26,27,28,29,31
d:后区方案:
后区2码:04,06
后区4码:04,06,11,12
后区6码:03,04,06,09,11,12