C32133223331333131133132212111133133313331333131211211233212212121   >>    C3213322333133313113313221211113313331333133313121121123321221212   <<    C32133223331333131133132212111133133313331333131211211233212212123   >>      C32133223331333131133132212111133133313331333131211211233212212122   >>