a:排除号码:
排除前区:05,08,10,11,19,20,32,33=0-1
排除后区:05,08,10,11
b:龙头凤尾:
龙头关注:06或07
凤尾关注:27或29
c:前区方案:
a-10码:06,07,09,14,16,18,24,25,27,29
b-14码:06,07,09,14,16,17,18,21,22,23,24,25,27,29
c-18码:01,02,03,06,07,09,14,15,16,17,18,21,22,23,24,25,27,29
d:后区方案:
后区2码:02,04
后区4码:02,04,07,09
后区6码:01,02,03,04,07,09