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_18 (season VARCHAR, points VARCHAR, finish VARCHAR)
### Question:
What season has a 6th north finish and more than 21 points?
### Answer:
SELECT season FROM table_name_18 WHERE points > 21 AND finish = "6th north"