C13332313311211113313331333133313331322333133313331333133313233313232223121   >>    C1333231331121111331333133313331333132233313331333133313331323331323222312   <<    C13332313311211113313331333133313331322333133313331333133313233313232223123   >>      C13332313311211113313331333133313331322333133313331333133313233313232223122   >>