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2. 3. 12 7- 4. 1 5. 6. 6,6- . 5 . 7. 1 ? 14 8. 2 1 45 . 9. 3 977 . 2- 1- 0,6. 3- 1- 15- . 10. 3 1- 2- 0,6 3- +15 977 + ++15=9776 =977-1513 10 5 =96213 =962:5 13 =370 5 11. 41 3 42 33-4 .1 ? 12. 5 3 680 . 2- 1- 3 , 3- 2- 5 2 3 ? 13. 51 , , . . , , ? 14. 15. . dftfdddd