| 4. | 1 2 | 3 4 | 5 | 6 7 | 8 9 | | 5. | | | | | 1000 | 3 5 1000 3000 | 7 3000 | 9 | 5 9 | 5 7 3 | 5 5 9 | | | 11 | | | | | |