南城荒凉北城伤北城寂寥南城殇
[nán chéng huāng liáng bĕi chéng shāng bĕi chéng jì liáo nán chéng shāng]
It translates roughly to 'The South City desolate and empty, the North City sorrowful and lonely'. It paints an image of two cities with opposite yet equally melancholic states, symbolizing inner loneliness or contrasting emotions in life.