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 employees (hire_date VARCHAR, first_name VARCHAR)
### Question:
when is the hire date for those employees whose first name does not containing the letter M?
### Answer:
SELECT hire_date FROM employees WHERE NOT first_name LIKE '%M%'