a:排除号码:
排除前区:05,07,13,14,18,23,26,30=0-1
排除后区:05,06,10,12
b:龙头凤尾:
龙头关注:06或08
凤尾关注:29或31
c:前区方案:
a-10码:06,08,09,12,15,19,22,24,29,31
b-14码:06,08,09,12,15,19,21,22,24,25,28,29,31,32
c-18码:03,04,06,08,09,12,15,16,19,20,21,22,24,25,28,29,31,32
d:后区方案:
后区2码:01,03
后区4码:01,02,03,04
后区6码:01,02,03,04,07,11