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_57 (avg INTEGER, fuml INTEGER)
### Question:
What was the highest average when Fuml was 0?
### Answer:
SELECT MAX(avg) FROM table_name_57 WHERE fuml < 0