C11

C12

C13

C14

C15

C16

C11

1

1

1/4

1/3

1/2

1/7

C12

1

1

1/2

1/4

1/3

1/6

C13

4

2

1

1

2

1/5

C14

3

4

1

1

3

1/3

C15

2

3

1/2

1/3

1

1/2

C16

7

6

5

3

2

1