C21231322221311331311211312111133132313223313331322121111133313221232323311   >>    C2123132222131133131121131211113313231322331333132212111113331322123232331   <<    C21231322221311331311211312111133132313223313331322121111133313221232323313   >>      C21231322221311331311211312111133132313223313331322121111133313221232323312   >>