C212313222213113313112113121111331323132233133313223313331123311321   >>    C21231322221311331311211312111133132313223313331322331333112331132   <<    C212313222213113313112113121111331323132233133313223313331123311323   >>      C212313222213113313112113121111331323132233133313223313331123311322   >>