C11112331333132311331333133313231333131133131211111333132323213233311   >>    C1111233133313231133133313331323133313113313121111133313232321323331   <<    C11112331333132311331333133313231333131133131211111333132323213233313   >>      C11112331333132311331333133313231333131133131211111333132323213233312   >>