2, 4, 5

3, 5, 6, 8

4, 5, 6, 8

3, 4, 6

4, 6

6, 8

2, 4, 6

4, 6

6

6

3, 4, 6

6, 7

4, 6

6, 8

4, 6

3, 4, 6

5, 6

4, 6

1, 2

2, 3, 4, 5, 6

4, 6

4, 6, 8

1, 2, 4

4, 6