C21231322221311331311211312111133133331333133313331322331333132322213232131   >>    C2123132222131133131121131211113313333133313331333132233133313232221323213   <<    C21231322221311331311211312111133133331333133313331322331333132322213232133   >>      C21231322221311331311211312111133133331333133313331322331333132322213232132   >>