C111123313121111121111331333133313331322121111331333133313331323321312311   >>    C11112331312111112111133133313331333132212111133133313331333132332131231   <<    C111123313121111121111331333133313331322121111331333133313331323321312313   >>      C111123313121111121111331333133313331322121111331333133313331323321312312   >>