C133323133112111133133313331333133313223331333133313331333211133123121   >>    C13332313311211113313331333133313331322333133313331333133321113312312   <<    C133323133112111133133313331333133313223331333133313331333211133123123   >>      C133323133112111133133313331333133313223331333133313331333211133123122   >>