C212313222213113313112113121111331323132233133313331121133132323232311   >>    C21231322221311331311211312111133132313223313331333112113313232323231   <<    C212313222213113313112113121111331323132233133313331121133132323232313   >>      C212313222213113313112113121111331323132233133313331121133132323232312   >>