Prosečne GPS koordinate za poštanski broj 121-780: 37.548, 126.955

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Spisak gradova:
>> Gongdeok-dong/공덕동 121-780, Seoul/서울, Mapo-gu/마포구, Samseongraemiangongdeok 3 chaapateu 301-310/삼성래미안공덕3차아파트 301-310, GPS koordinate: 37.54805,126.9554
>> Gongdeok-dong/공덕동 121-780, Seoul/서울, Mapo-gu/마포구, Samseongraemiangongdeok 4 chaapateu 401-412/삼성래미안공덕4차아파트 401-412, GPS koordinate: 37.54816,126.95551