C11112331312111112111133133313331333132313233313231322131133311   >>    C1111233131211111211113313331333133313231323331323132213113331   <<    C11112331312111112111133133313331333132313233313231322131133313   >>      C11112331312111112111133133313331333132313233313231322131133312   >>