C3123121111331133132313331333133313331333133313331333131133133313232223121   >>    C312312111133113313231333133313331333133313331333133313113313331323222312   <<    C3123121111331133132313331333133313331333133313331333131133133313232223123   >>      C3123121111331133132313331333133313331333133313331333131133133313232223122   >>