3/6 4/6

7/6_{x x}6/7 6/2

6/0 6/0

1/6 5/7

6/3 6/3

6/0 6/3

0/6 _x6/7

6/3 6/4

2/6 3/6

0/6 0/6

2/6 2/6

6/0 6/0

6/1 6/1

6/3 6/2

2/6 3/6

6/3 6/1

5/7 _x6/7

2/6 6/4 6/3

2/6 3/6

1/6 2/6

0/6 5/7

6/0 6/4

1/6 4/6

3/6 1/6

7/6_x 6/2

3/6 0/6

2/6 4/6

2/6 1/6

1/6 6/4 7/5

2/6 0/6

7/6_x 3/6 6/1

1/6 0/6

2/6 2/6

3/6 1/6

0/6 5/7

6/2 6/3

7/6_x 6/4

7/6_x 6/2

7/6_x 6/4