C111112111133131121133133313331311331333131133133313232233112331   >>    C11111211113313112113313331333131133133313113313331323223311233   <<    C111112111133131121133133313331311331333131133133313232233112333   >>      C111112111133131121133133313331311331333131133133313232233112332   >>