( 30-40 ), ( 40-45 5-12 ) ( 40+15+15+15+15 ) . 3-4 /2. 0,5-5 , - 1,5-3 , 2-4 . ( ) . . 1 10-15 2 .

10-18 . . , 7-8- 1-1,5 . , 1-2 .





















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