Calculate the total salary for employees who did inspection from ID 52270 to 52272.
inspection from ID 52270 to 52272 refers to inspection_id between 52270 and 52272
SELECT SUM(T2.salary) FROM inspection AS T1 INNER JOIN employee AS T2 ON T1.employee_id = T2.employee_id WHERE T1.inspection_id BETWEEN 52270 AND 52272