C111123313121111121111331333133313331333131233133313232213332121   >>    C11112331312111112111133133313331333133313123313331323221333212   <<    C111123313121111121111331333133313331333131233133313232213332123   >>      C111123313121111121111331333133313331333131233133313232213332122   >>