C111112111133131121133133313331333133313331323133313331333133313331333122223121   >>    C11111211113313112113313331333133313331333132313331333133313331333133312222312   <<    C111112111133131121133133313331333133313331323133313331333133313331333122223123   >>      C111112111133131121133133313331333133313331323133313331333133313331333122223122   >>