C312322331333132212111133133313331333131133113313331333131211113311221123121221   >>    C31232233133313221211113313331333133313113311331333133313121111331122112312122   <<    C312322331333132212111133133313331333131133113313331333131211113311221123121223   >>      C312322331333132212111133133313331333131133113313331333131211113311221123121222   >>