C3123121111331133132313331333133313331333133313331333131133133313231   >>    C312312111133113313231333133313331333133313331333133313113313331323   <<    C3123121111331133132313331333133313331333133313331333131133133313233   >>      C3123121111331133132313331333133313331333133313331333131133133313232   >>