C3213322333133313113313221211113313331333133313121121123231113113121   >>    C321332233313331311331322121111331333133313331312112112323111311312   <<    C3213322333133313113313221211113313331333133313121121123231113113123   >>      C3213322333133313113313221211113313331333133313121121123231113113122   >>