04,05,06,07,13,18,20,21,28,32
34,39,40,42,44,47,50,56,75,76

02,03,04,14,15,19,25,28,32,38
39,40,42,45,48,60,61,63,65,67

03,10,18,22,24,26,28,30,37,41
46,47,48,51,57,63,69,70,75,76

03,05,08,17,19,20,21,27,29,42
47,49,51,53,62,66,69,71,74,80

04,08,12,13,17,21,26,27,30,31
35,38,43,50,52,57,60,72,79,80