C133323133112111133133313331333133313231322331333133313331333233123121   >>    C13332313311211113313331333133313331323132233133313331333133323312312   <<    C133323133112111133133313331333133313231322331333133313331333233123123   >>      C133323133112111133133313331333133313231322331333133313331333233123122   >>