ellaruc

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![image](https://user-images.githubusercontent.com/42433575/81293913-abd12900-90a0-11ea-880d-35214a3517ba.png) where is the data sample?I cant understand the means of user_song_tuple.txt

![image](https://user-images.githubusercontent.com/42433575/80557221-c94f2480-8a08-11ea-8f12-847c7efb819a.png) where is ./config8?