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0```0,80```0,50```0,2```0,50```0,50
0```11``````01```10```
N ///``` =/_//    -15    ```///     ``` =/_//      -15   ``` %///%      ```^///   
```pages/100/contents/02,05,17_06/1.txt``````pages/100/contents/02,05,17_07/1.txt``````
