What was Andretti's finish for the year he had a Buick engine and started 16th?
CREATE TABLE table_name_50 (
    finish VARCHAR,
    engine VARCHAR,
    start VARCHAR
)
SELECT finish FROM table_name_50 WHERE engine = "buick" AND start = "16th"
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: What was Andretti's finish for the year he had a Buick engine and started 16th? ### Input: CREATE TABLE table_name_50 (
    finish VARCHAR,
    engine VARCHAR,
    start VARCHAR
) ### Response: SELECT finish FROM table_name_50 WHERE engine = "buick" AND start = "16th"