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_8 (attendance INTEGER, season VARCHAR, premiership VARCHAR, runner_up VARCHAR)
### Question:
If the season is before 2000, the runner up was north melbourne, and it's the pre-season cup, what's the sum of attendees?
### Answer:
SELECT SUM(attendance) FROM table_name_8 WHERE premiership = "pre-season cup" AND runner_up = "north melbourne" AND season < 2000