6 10 12

6 10

6

6-8 8-10

6 10

8-10

4 6 8 12

8-10

6-8

6

10-12

8

6 8 10

8-10

6

4-6

6 8 10

4-6

6

6-8 8-10

6

8-10 10-12

8

6-8