C32133223331333131133132212111133133313331333131211211233131221   >>    C3213322333133313113313221211113313331333133313121121123313122   <<    C32133223331333131133132212111133133313331333131211211233131223   >>      C32133223331333131133132212111133133313331333131211211233131222   >>