Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_51 (sales VARCHAR, position VARCHAR, artist VARCHAR)
### Question:
What were the sales for Dj Casper when he was in a position lower than 13?
### Answer:
SELECT sales FROM table_name_51 WHERE position < 13 AND artist = "dj casper"