C212313222213113313112113121111331323132233133313223313113313331333132322232311   >>    C21231322221311331311211312111133132313223313331322331311331333133313232223231   <<    C212313222213113313112113121111331323132233133313223313113313331333132322232313   >>      C212313222213113313112113121111331323132233133313223313113313331333132322232312   >>