How many different episode numbers does the episode written by Sheri Elwood and directed by Jim Allodi have?
CREATE TABLE table_27155243_3 (
    total__number VARCHAR,
    written_by VARCHAR,
    directed_by VARCHAR
)
SELECT COUNT(total__number) FROM table_27155243_3 WHERE written_by = "Sheri Elwood" AND directed_by = "Jim Allodi"
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 different episode numbers does the episode written by Sheri Elwood and directed by Jim Allodi have? ### Input: CREATE TABLE table_27155243_3 (
    total__number VARCHAR,
    written_by VARCHAR,
    directed_by VARCHAR
) ### Response: SELECT COUNT(total__number) FROM table_27155243_3 WHERE written_by = "Sheri Elwood" AND directed_by = "Jim Allodi"