C3213322333133313113313221211113313331333133313121121123321121211   >>    C321332233313331311331322121111331333133313331312112112332112121   <<    C3213322333133313113313221211113313331333133313121121123321121213   >>      C3213322333133313113313221211113313331333133313121121123321121212   >>