C3213322333133313113313221211113313331333133313121121123223323331   >>    C321332233313331311331322121111331333133313331312112112322332333   <<    C3213322333133313113313221211113313331333133313121121123223323333   >>      C3213322333133313113313221211113313331333133313121121123223323332   >>