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_86 (sack INTEGER, totaltk VARCHAR, asst VARCHAR)
### Question:
what is the total sack when totaltk is 1 and asst. is more than 0?
### Answer:
SELECT SUM(sack) FROM table_name_86 WHERE totaltk = 1 AND asst > 0