C11112331312111112111133133313331333132323133313331333133313112132312311   >>    C1111233131211111211113313331333133313232313331333133313331311213231231   <<    C11112331312111112111133133313331333132323133313331333133313112132312313   >>      C11112331312111112111133133313331333132323133313331333133313112132312312   >>