| 1. 15 15 | | | | | | | | 2. | | | | 3. 20 5 20 | | | | | | | 4. 6 | 4 2 | 2 2 | | 8 10 | | 5. 10 | 10 3 | | | | | | | | 6. 10 | 5 5 | | | |