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4. (500 ) , 5 . , 7 . , , , 8-10 . , 10-12 , . .
5. 20 , . .
6. 10 , . .
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" ": 1 - 2 - ... 34 - 18 - 100% 35 - "" 36 - 37 - 38 - 39 -