选七
02,04,17,26,30,60,75
02,04,17,26,37,50,77
02,07,18,26,30,42,58
02,08,13,26,30,31,72
04,07,13,17,18,42,60
04,08,17,31,58,72,77
07,08,18,31,42,72,75
07,13,30,42,60,75,77
07,13,37,42,50,58,75
08,31,37,50,58,60,72
13,18,37,50,58,75,77
18,30,31,37,50,60,77