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_51 (goal_difference VARCHAR, club VARCHAR, played VARCHAR)
### Question:
what is the total number of goal different when the club is cf extremadura and the played is less than 38?
### Answer:
SELECT COUNT(goal_difference) FROM table_name_51 WHERE club = "cf extremadura" AND played < 38