Submission Format
Please submit your result in a csv file. It should looks like this.
| id        | price           
| ------------- |:-------------:| 
|   12  | 180 |
| 46      | 75.45 | 
| 80 | 16.8  |
Evaluation Metrics
In this task, we will use the root mean squared error (RMSE) to evaluate the performance of your algorithm.