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_15905399_1 (length VARCHAR, iin_ranges VARCHAR)
  ### Question:
  What is the length for iin range 51-55?
  ### Answer:
  SELECT length FROM table_15905399_1 WHERE iin_ranges = "51-55"