a:排除号码:
排除前区:08,12,16,17,21,26,27,28=0-1
排除后区:02,03,08,12
b:龙头凤尾:
龙头关注:06或07
凤尾关注:30或33
c:前区方案:
a-10码:06,07,10,13,15,20,23,25,30,33
b-14码:04,05,06,07,10,13,15,18,19,20,23,25,30,33
c-18码:01,02,04,05,06,07,09,10,13,14,15,18,19,20,23,25,30,33
d:后区方案:
后区2码:04,06
后区4码:04,06,07,10
后区6码:01,04,05,06,07,10