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_99 (week INTEGER, opponent VARCHAR, attendance VARCHAR)
### Question:
What is the average week with St. Louis Cardinals with less than 80,010 attendance?
### Answer:
SELECT AVG(week) FROM table_name_99 WHERE opponent = "st. louis cardinals" AND attendance < 80 OFFSET 010