C21231322221311331311211312111133132313223313331323223313331311321   >>    C2123132222131133131121131211113313231322331333132322331333131132   <<    C21231322221311331311211312111133132313223313331323223313331311323   >>      C21231322221311331311211312111133132313223313331323223313331311322   >>