a:排除号码:
排除前区:01,02,06,09,11,22,27,35=0-1
排除后区:01,02,08,12
b:龙头凤尾:
龙头关注:03或05
凤尾关注:28或29
c:前区方案:
a-10码:03,05,10,12,16,18,23,25,28,29
b-14码:03,05,10,12,16,18,20,21,23,24,25,28,29,31
c-18码:03,04,05,07,10,12,13,16,18,19,20,21,23,24,25,28,29,31
d:后区方案:
后区2码:04,06
后区4码:04,06,07,09
后区6码:04,05,06,07,09,11