| 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 | | | | | | | |