C3213322333133313113313221211113313331333133313121121123223321211   >>    C321332233313331311331322121111331333133313331312112112322332121   <<    C3213322333133313113313221211113313331333133313121121123223321213   >>      C3213322333133313113313221211113313331333133313121121123223321212   >>