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_64 (round VARCHAR, college VARCHAR, overall VARCHAR)
### Question:
Which Round has a College of appalachian state, and an Overall smaller than 156?
### Answer:
SELECT COUNT(round) FROM table_name_64 WHERE college = "appalachian state" AND overall < 156