C3123121111331311213331333131133133313331333133313331331123221123231   >>    C312312111133131121333133313113313331333133313331333133112322112323   <<    C3123121111331311213331333131133133313331333133313331331123221123233   >>      C3123121111331311213331333131133133313331333133313331331123221123232   >>