C11112331312111112111133133313331333133313331322133313331333112311   >>    C1111233131211111211113313331333133313331333132213331333133311231   <<    C11112331312111112111133133313331333133313331322133313331333112313   >>      C11112331312111112111133133313331333133313331322133313331333112312   >>