select e.emp_no
from employees e
where e.emp_no not in (select e.emp_nofrom employees einner join dept_manager don e.emp_no = d.emp_no
)
select e.emp_no
from employees e
where e.emp_no not in (select e.emp_nofrom employees einner join dept_manager don e.emp_no = d.emp_no
)