qw12

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# 输入 ![image](https://user-images.githubusercontent.com/103188366/235564275-985a1629-9024-473c-bb8d-6e1ab5e515db.png) ![image](https://user-images.githubusercontent.com/103188366/235564484-891be5df-18ad-4d72-bb64-662a1bb9c197.png) # 输出 ![image](https://user-images.githubusercontent.com/103188366/235564700-08ac9b4e-5807-4ae5-a54a-b2807aff8df4.png) ![image](https://user-images.githubusercontent.com/103188366/235564810-55984158-1985-4058-bc72-703b0986d38f.png)