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_18 (Id VARCHAR)
### Question:
What is 1999, when 1998 is 2R?
### Answer:
SELECT 1999 FROM table_name_18 WHERE 1998 = "2r"