Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_57 (last_aired VARCHAR, retitled_as_same VARCHAR)
### Question:
Which Last Aired has a Retitled as/Same of classic concentration?
### Answer:
SELECT last_aired FROM table_name_57 WHERE retitled_as_same = "classic concentration"