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_54 (heat VARCHAR, rank VARCHAR, result VARCHAR)
### Question:
What is the Heat of the Player with a Rank of 18 or less and Result of 55.15?
### Answer:
SELECT heat FROM table_name_54 WHERE rank < 18 AND result = "55.15"