C11112331312111112111133133313331333132322121111331311331333132331231   >>    C1111233131211111211113313331333133313232212111133131133133313233123   <<    C11112331312111112111133133313331333132322121111331311331333132331233   >>      C11112331312111112111133133313331333132322121111331311331333132331232   >>