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_6 (shirt_no INTEGER, birth_date VARCHAR, weight VARCHAR)
### Question:
Birth Date of 8 November 1980, and a Weight smaller than 93 has what sum of a shirt number?
### Answer:
SELECT SUM(shirt_no) FROM table_name_6 WHERE birth_date = "8 november 1980" AND weight < 93