C3123223313331322121111331333133313331311331133133313331333133112111133212121   >>    C312322331333132212111133133313331333131133113313331333133313311211113321212   <<    C3123223313331322121111331333133313331311331133133313331333133112111133212123   >>      C3123223313331322121111331333133313331311331133133313331333133112111133212122   >>