C3213322333133313113313221211113313331333133313121121123223113133121   >>    C321332233313331311331322121111331333133313331312112112322311313312   <<    C3213322333133313113313221211113313331333133313121121123223113133123   >>      C3213322333133313113313221211113313331333133313121121123223113133122   >>