C3213322333133313113313221211113313331333133313121121123222122213221   >>    C321332233313331311331322121111331333133313331312112112322212221322   <<    C3213322333133313113313221211113313331333133313121121123222122213223   >>      C3213322333133313113313221211113313331333133313121121123222122213222   >>