C21231322221311331311211312111133132313223313331323223332233131   >>    C2123132222131133131121131211113313231322331333132322333223313   <<    C21231322221311331311211312111133132313223313331323223332233133   >>      C21231322221311331311211312111133132313223313331323223332233132   >>