age = 25
  if age >=8 and age <= 13:
    print("초등학생")
elif age >= 14 and age <= 16:
    print("중학생")
elif age >= 17 and age <=19:
    print("고등학생")
elif age >= 21 and age <= 22:
    print("대학생")
else:
    print("학생이 아님")