A:排除号码:
排除前区:01,06,10,13,19,27,28,35=0-1
排除后区:03,06,08,11
B:龙头凤尾:
龙头关注:05或07
凤尾关注:31或33
C:前区方案:
a-10码:05,07,08,12,15,20,22,29,31,33
b-14码:05,07,08,11,12,15,20,21,22,23,29,30,31,33
c-18码:02,03,05,07,08,09,11,12,15,17,20,21,22,23,29,30,31,33D:后区方案:
后区2码:05,07
后区4码:02,04,05,07
后区6码:01,02,04,05,07,09