C3123121111121111131213331333133313331333133313332112323132333133311213223311   >>    C312312111112111113121333133313331333133313331333211232313233313331121322331   <<    C3123121111121111131213331333133313331333133313332112323132333133311213223313   >>      C3123121111121111131213331333133313331333133313332112323132333133311213223312   >>