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_45 (hardness VARCHAR, liquid_at__°c_ VARCHAR)
### Question:
What is the hardness for the alloy that is liquid at 243 degrees C?
### Answer:
SELECT hardness FROM table_name_45 WHERE liquid_at__°c_ = "243"