How many Podiums have a Class of 250cc, and an F laps of 0?
CREATE TABLE table_name_18 (
    podiums INTEGER,
    class VARCHAR,
    f_laps VARCHAR
)
SELECT SUM(podiums) FROM table_name_18 WHERE class = "250cc" AND f_laps = 0
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many Podiums have a Class of 250cc, and an F laps of 0? ### Input: CREATE TABLE table_name_18 (
    podiums INTEGER,
    class VARCHAR,
    f_laps VARCHAR
) ### Response: SELECT SUM(podiums) FROM table_name_18 WHERE class = "250cc" AND f_laps = 0