6 10

6-8

8-10

4-6 6-8

10

10-12

6

6-8

6 8 10

6-8

6 8 10

6 8

8-10

6 8 10 12

6 8 10 12

8 10 12

4-6 6-8

6 8 10

8

6

4-6 8-10

6-8

10-12

8