C111123313121111121111331333133313121111113223313331333132313221231213121   >>    C11112331312111112111133133313331312111111322331333133313231322123121312   <<    C111123313121111121111331333133313121111113223313331333132313221231213123   >>      C111123313121111121111331333133313121111113223313331333132313221231213122   >>