C212313222213113313112113121111331323132233133313231323232132313232321   >>    C21231322221311331311211312111133132313223313331323132323213231323232   <<    C212313222213113313112113121111331323132233133313231323232132313232323   >>      C212313222213113313112113121111331323132233133313231323232132313232322   >>