C11112331312111112111133133313331333133313123313331312111113331333223323311   >>    C1111233131211111211113313331333133313331312331333131211111333133322332331   <<    C11112331312111112111133133313331333133313123313331312111113331333223323313   >>      C11112331312111112111133133313331333133313123313331312111113331333223323312   >>