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_13555999_1 (university_students_and_adults__18yrs VARCHAR, _ VARCHAR, senior_high_school__15_18_yrs_ VARCHAR)
### Question:
What amount of the university students and adults ehre the the senior high school is 26mm?
### Answer:
SELECT university_students_and_adults__18yrs + _ FROM table_13555999_1 WHERE senior_high_school__15_18_yrs_ = "26mm"