C3123121111331133132313331333133313331333133313331333131133133313123311   >>    C312312111133113313231333133313331333133313331333133313113313331312331   <<    C3123121111331133132313331333133313331333133313331333131133133313123313   >>      C3123121111331133132313331333133313331333133313331333131133133313123312   >>