C11112331312111112111133133313331333133313331333133313331333131133131123311311   >>    C1111233131211111211113313331333133313331333133313331333133313113313112331131   <<    C11112331312111112111133133313331333133313331333133313331333131133131123311313   >>      C11112331312111112111133133313331333133313331333133313331333131133131123311312   >>