C3213322333133313113313221211113313331333133313121121123222113323213211   >>    C321332233313331311331322121111331333133313331312112112322211332321321   <<    C3213322333133313113313221211113313331333133313121121123222113323213213   >>      C3213322333133313113313221211113313331333133313121121123222113323213212   >>