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_12 (loss INTEGER, avg_g VARCHAR, long VARCHAR)
### Question:
What is the average Loss, when Avg/g is 0, and when Long is less than 0?
### Answer:
SELECT AVG(loss) FROM table_name_12 WHERE avg_g = 0 AND long < 0