C3213322333133313113313221211113313331333133313121121123231133212211   >>    C321332233313331311331322121111331333133313331312112112323113321221   <<    C3213322333133313113313221211113313331333133313121121123231133212213   >>      C3213322333133313113313221211113313331333133313121121123231133212212   >>