C32133223331333131133132212111133133313331311212323121313223121   >>    C3213322333133313113313221211113313331333131121232312131322312   <<    C32133223331333131133132212111133133313331311212323121313223123   >>      C32133223331333131133132212111133133313331311212323121313223122   >>