C11112331312111112111133133313331333132322121111331312113313331333133311211   >>    C1111233131211111211113313331333133313232212111133131211331333133313331121   <<    C11112331312111112111133133313331333132322121111331312113313331333133311213   >>      C11112331312111112111133133313331333132322121111331312113313331333133311212   >>