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_6 (d_42_√ VARCHAR, d_45_√ VARCHAR)
### Question:
What is the D 42 √ number when the D 45 √ is r 16?
### Answer:
SELECT d_42_√ FROM table_name_6 WHERE d_45_√ = "r 16"