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 (podiums INTEGER, class VARCHAR, f_laps VARCHAR)
### Question:
How many Podiums have a Class of 250cc, and an F laps of 0?
### Answer:
SELECT SUM(podiums) FROM table_name_18 WHERE class = "250cc" AND f_laps = 0