C3213322333133313113313221211113313331333133313121121123331233121   >>    C321332233313331311331322121111331333133313331312112112333123312   <<    C3213322333133313113313221211113313331333133313121121123331233123   >>      C3213322333133313113313221211113313331333133313121121123331233122   >>