C111123313121111121111331333133313331333132232233132323213231221   >>    C11112331312111112111133133313331333133313223223313232321323122   <<    C111123313121111121111331333133313331333132232233132323213231223   >>      C111123313121111121111331333133313331333132232233132323213231222   >>