Private, that is, junior high school before the high school affiliated to Nanjing Normal University. If you are excellent (for example, you got a place in the Olympics), you can apply for admission. If you don't win the prize, you must take the exam. There are places in every main city in Nanjing, among which Gulou District has the most, and it will be selected according to your test results. Tuition is quite expensive, more expensive than ordinary junior high school.