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_73 (enrollment INTEGER, ihsaa_class VARCHAR, mascot VARCHAR)
### Question:
How many people enrolled a the school with an IHSAA Class of a, and the trojans as their mascot?
### Answer:
SELECT MIN(enrollment) FROM table_name_73 WHERE ihsaa_class = "a" AND mascot = "trojans"