C11112331312111112111133133313331333132322121111331311321331211   >>    C1111233131211111211113313331333133313232212111133131132133121   <<    C11112331312111112111133133313331333132322121111331311321331213   >>      C11112331312111112111133133313331333132322121111331311321331212   >>