C3213322333133313113313221211113313331333133313121121123321222121121   >>    C321332233313331311331322121111331333133313331312112112332122212112   <<    C3213322333133313113313221211113313331333133313121121123321222121123   >>      C3213322333133313113313221211113313331333133313121121123321222121122   >>