C111123313121111121111331333132313331333132212131133132313232221   >>    C11112331312111112111133133313231333133313221213113313231323222   <<    C111123313121111121111331333132313331333132212131133132313232223   >>      C111123313121111121111331333132313331333132212131133132313232222   >>