CREATE TABLE table_name_25 (county VARCHAR(255), ihsaa_football_class VARCHAR(255), mascot VARCHAR(255))
What county has a football team in IHSAA class AAAAA and a school macot of the Grizzly Cubs?
    
SQL: SELECT county FROM table_name_25 WHERE ihsaa_football_class = "aaaaa" AND mascot = "grizzly cubs"