C11112331333132311331333132313331333131133131133133313232222233311   >>    C1111233133313231133133313231333133313113313113313331323222223331   <<    C11112331333132311331333132313331333131133131133133313232222233313   >>      C11112331333132311331333132313331333131133131133133313232222233312   >>