what is the average bodyweight when snatch is 80?
CREATE TABLE table_57449 (
    "Name" text,
    "Bodyweight" real,
    "Snatch" real,
    "Clean & jerk" real,
    "Total (kg)" text
)
SELECT AVG("Bodyweight") FROM table_57449 WHERE "Snatch" = '80'
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 is the average bodyweight when snatch is 80? ### Input: CREATE TABLE table_57449 (
    "Name" text,
    "Bodyweight" real,
    "Snatch" real,
    "Clean & jerk" real,
    "Total (kg)" text
) ### Response: SELECT AVG("Bodyweight") FROM table_57449 WHERE "Snatch" = '80'