C212313222213113313112113121111331323132233133313331133132233121   >>    C21231322221311331311211312111133132313223313331333113313223312   <<    C212313222213113313112113121111331323132233133313331133132233123   >>      C212313222213113313112113121111331323132233133313331133132233122   >>