C21231322221311331311211312111133132313223313331323223313331311211132323311   >>    C2123132222131133131121131211113313231322331333132322331333131121113232331   <<    C21231322221311331311211312111133132313223313331323223313331311211132323313   >>      C21231322221311331311211312111133132313223313331323223313331311211132323312   >>