C32133223331333131133132212111133133313331333131211211232233211   >>    C3213322333133313113313221211113313331333133313121121123223321   <<    C32133223331333131133132212111133133313331333131211211232233213   >>      C32133223331333131133132212111133133313331333131211211232233212   >>