13

etc.

etc.

etc.

etc.

12

x

x

x

x

x

x

x

x

x

x

x

x

11

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

10

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

9

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

8

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

7

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

6

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

5

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

4

x

x

x

x

x

x

x

x

x

x

x

x

3

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

2

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

1

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x

x