C11112331312111112111133133313331333133313123313331322113122311   >>    C1111233131211111211113313331333133313331312331333132211312231   <<    C11112331312111112111133133313331333133313123313331322113122313   >>      C11112331312111112111133133313331333133313123313331322113122312   >>