| 1. | | 3 | 1 20 | | 27 | | | | | | | | | | | | 2. | | 3 | 1 | | | | | | | | | | 3. | P2P | | | | 3 1 | | | | | P2P | | | 4. | | | | | | | | | | 3 1 | | 5. | | | | 3 1 | | 6 | | | 60 | | | 10 | 6. | | | | | 3 | 1 | | | | | | | | 7. | | | | 3 1 | | | | | | | | |