C3213322333133313113313221211113313331333133313121121123231111212311   >>    C321332233313331311331322121111331333133313331312112112323111121231   <<    C3213322333133313113313221211113313331333133313121121123231111212313   >>      C3213322333133313113313221211113313331333133313121121123231111212312   >>