: ●3-4 ●1 ●150 ●, ● ●3-4 ●4-6 ●3-4 ● : 1. 3-4 150 . . 2. . 3. . 4. (3-4 ) (4-6 ). . 5. (3-4) . 6. - . 7. 200 -!
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