text: 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_4 (goal_difference VARCHAR, goals_against VARCHAR, played VARCHAR)
  ### Question:
  Tell me the totla number of goal difference for goals against of 30 and played less than 18
  ### Answer:
  SELECT COUNT(goal_difference) FROM table_name_4 WHERE goals_against = 30 AND played < 18