C3213322333133313113313221211113313331333133313121121123321112121   >>    C321332233313331311331322121111331333133313331312112112332111212   <<    C3213322333133313113313221211113313331333133313121121123321112123   >>      C3213322333133313113313221211113313331333133313121121123321112122   >>