
employees = ['Corey', 'Jim', 'Steven', 'April', 'Judy', 'Jenn', 'John', 'Jane']

gym_members = ['April', 'John', 'Corey']

developers = ['Judy', 'Corey', 'Steven', 'Jane', 'April']

result = set(employees).difference(gym_members, developers)
print(result)
