南城荒芜北城伤北城孤寂南城凉
[nán chéng huāng wú bĕi chéng shāng bĕi chéng gū jì nán chéng liáng]
Describing two cities with contrasting emotions – South City desolate, North City wounded, North City lonely, South City cold – it reflects inner sadness and loneliness in an emotionally divided world.