Area 1 : Dobong-gu, Gangbuk-gu, Seongbuk-gu, Nowon-gu.
Area 1 : Dobong-gu, Gangbuk-gu, Seongbuk-gu, Nowon-gu.

Since there are no words in the reference text that can be easily replaced with synonyms without changing the meaning, this sentence remains unchanged.