## Goal 

It is your job to predict the sales price for each house. For each `PID` in the test set, you must predict the value of the `SalePrice` variable. 

## Metric 

Submissions are evaluated on **Root-Mean-Squared-Error (RMSE)** between the *logarithm* of the predicted value and the *logarithm* of the observed sales price. (Taking logs means that errors in predicting expensive houses and cheap houses will affect the result equally.) 

## Submission File Format 

The file should contain a header and have the following format: 
| PID | SalePrice | 
| 907135180 | 169000.1 | 
| 903206120 | 187724.1233 | 
etc. 

You can download an example submission file (`sample_submission.csv`) on the Data page.