C3213322333133313113313221211113313331333133313121121123222221123232221   >>    C321332233313331311331322121111331333133313331312112112322222112323222   <<    C3213322333133313113313221211113313331333133313121121123222221123232223   >>      C3213322333133313113313221211113313331333133313121121123222221123232222   >>