Which Season has a Level of tier 4, and a Position of 11th?
CREATE TABLE table_name_18 (
    season INTEGER,
    level VARCHAR,
    position VARCHAR
)
SELECT SUM(season) FROM table_name_18 WHERE level = "tier 4" AND position = "11th"
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: Which Season has a Level of tier 4, and a Position of 11th? ### Input: CREATE TABLE table_name_18 (
    season INTEGER,
    level VARCHAR,
    position VARCHAR
) ### Response: SELECT SUM(season) FROM table_name_18 WHERE level = "tier 4" AND position = "11th"