จำนวนชั้นเรียน 400 ระดับที่เปิดสอนสำหรับภาคเรียนฤดูใบไม้ผลิและฤดูร้อนคือเท่าใด ไม่จำเป็นต้องใช้ตารางทั้งหมด
What is the number of 400 -level classes that are being offered for Spring and Summer term ?It is not neccessary to use all the tables.
 course_tags_count:  course_id [ int]  clear_grading [ int]  pop_quiz [ int]  group_projects [ int]  inspirational [ int]  long_lectures [ int]  extra_credit [ int]  few_tests [ int]  good_feedback [ int]  tough_tests [ int]  heavy_papers [ int]  cares_for_students [ int]  heavy_assignments [ int]  respected [ int]  participation [ int]  heavy_reading [ int]  tough_grader [ int]  hilarious [ int]  would_take_again [ int]  good_lecture [ int]  no_skip [ int] 
SELECT COUNT(DISTINCT course.course_id, semester.semester) FROM course, course_offering, semester WHERE course.course_id = course_offering.course_id AND course.department = 'department0' AND course.number BETWEEN 400 AND 400 + 100 AND semester.semester IN ('SP', 'SS', 'SU') AND semester.semester_id = course_offering.semester AND semester.year = 2016