C3213322333133313113313221211113313331333133313121121123222233313111   >>    C321332233313331311331322121111331333133313331312112112322223331311   <<    C3213322333133313113313221211113313331333133313121121123222233313113   >>      C3213322333133313113313221211113313331333133313121121123222233313112   >>