C11112331312111112111133133313331333133313133313331333133313331123311231211   >>    C1111233131211111211113313331333133313331313331333133313331333112331123121   <<    C11112331312111112111133133313331333133313133313331333133313331123311231213   >>      C11112331312111112111133133313331333133313133313331333133313331123311231212   >>