Prosečne GPS koordinate za poštanski broj 121-799: 36.102, 127.052

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Spisak gradova:
>> Sangam-dong/상암동 121-799, Seoul/서울, Mapo-gu/마포구, Sangamwoldeukeoppakeu 3 danjiapateu 301-309/상암월드컵파크3단지아파트 301-309, GPS koordinate: 36.10187,127.05237
>> Sangam-dong/상암동 121-799, Seoul/서울, Mapo-gu/마포구, Sangamwoldeukeoppakeu 4 danjiapateu 401-412/상암월드컵파크4단지아파트 401-412, GPS koordinate: 36.10182,127.05232