C111112111133131121133133313331333133313331322121111133313311221   >>    C11111211113313112113313331333133313331333132212111113331331122   <<    C111112111133131121133133313331333133313331322121111133313311223   >>      C111112111133131121133133313331333133313331322121111133313311222   >>