C21231322221311331311211312111133132313223313331322331323213233231   >>    C2123132222131133131121131211113313231322331333132233132321323323   <<    C21231322221311331311211312111133132313223313331322331323213233233   >>      C21231322221311331311211312111133132313223313331322331323213233232   >>