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| | | | | 1. |
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| | | | | | | 2 . 3 |
| | | ① ② 6 | ③ | ④ | | | 3. | | 15 | | | 4. |
| | | 1-2 | | 5. | 40 3 | 20 | | 6. | | | |
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