0:0,1,2,4
1:0,1,2
2:4,5
3:0,1,4,5
4:0,1,2,3,4
5:0,1,2,5
6:0,1,2,4,5
7:1,2,3,4
8:1,2,3,4
9:0,1,2,4
a:3,4,5
b:0,1,2,3,4,5
c:0,1,3,4,5
d:5
e:0,1,2,3,4,5
f:0,1,2,5
10:0,1,2,3,4
11:0,1,2,3
12:0,1,2,3,4,5
13:0,1,2,5
14:0,1,2,5
15:0,1,3
