C3213322333133313113313221211113313331333133313121121123321222331231   >>    C321332233313331311331322121111331333133313331312112112332122233123   <<    C3213322333133313113313221211113313331333133313121121123321222331233   >>      C3213322333133313113313221211113313331333133313121121123321222331232   >>