C221213331323133112111133133313331322331311331333133313113313331311221123121121   >>    C22121333132313311211113313331333132233131133133313331311331333131122112312112   <<    C221213331323133112111133133313331322331311331333133313113313331311221123121123   >>      C221213331323133112111133133313331322331311331333133313113313331311221123121122   >>