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_24399615_3 (cable_rank VARCHAR, bbc_three_weekly_ranking VARCHAR)
### Question:
What is the cable rank for bbc three weekly ranking of n/a?
### Answer:
SELECT cable_rank FROM table_24399615_3 WHERE bbc_three_weekly_ranking = "N/A"