a:排除号码:
排除前区:04,11,19,21,27,33,34,35=0-1
排除后区:01,03,05,07
b:龙头凤尾:
龙头关注:01或03
凤尾关注:28或30
c:前区方案:
a-10码:01,03,08,10,16,18,23,25,28,30
b-14码:01,03,08,10,16,18,20,22,23,24,25,26,28,30
c-18码:01,03,06,07,08,10,13,15,16,18,20,22,23,24,25,26,28,30
d:后区方案:
后区2码:08,10
后区4码:06,08,10,11
后区6码:06,08,09,10,11,12