C11112331312111112111133133313331333132323213331313331312113311   >>    C1111233131211111211113313331333133313232321333131333131211331   <<    C11112331312111112111133133313331333132323213331313331312113313   >>      C11112331312111112111133133313331333132323213331313331312113312   >>