C21231322221311331311211312111133133331333133313331322331322333121211   >>    C2123132222131133131121131211113313333133313331333132233132233312121   <<    C21231322221311331311211312111133133331333133313331322331322333121213   >>      C21231322221311331311211312111133133331333133313331322331322333121212   >>