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_1 (second INTEGER, first VARCHAR, total VARCHAR, premier VARCHAR)
### Question:
What is the sum of Second, when Total is less than 70, when Premier is less than 20, and when First is greater than 18?
### Answer:
SELECT SUM(second) FROM table_name_1 WHERE total < 70 AND premier < 20 AND first > 18