text: 
  c1a.center = [0,0,0]
  c2a.center = [0,0,0]
  c3a.center = [0,0,0]
  c4a.center = [0,0,0]
  c5a.center = [0,0,0]
  c6a.center = [0,0,0]
  c7a.center = [0,0,0]
  c8a.center = [0,0,0]
  c9a.center = [0,0,0]
  
  c1b.center = [0,0,0]
  c2b.center = [0,0,0]
  c3b.center = [0,0,0]
  c4b.center = [0,0,0]
  c5b.center = [0,0,0]
  c6b.center = [0,0,0]
  c7b.center = [0,0,0]
  c8b.center = [0,0,0]
  c9b.center = [0,0,0]
  
  c1c.center = [0,0,0]
  c2c.center = [0,0,0]
  c3c.center = [0,0,0]
  c4c.center = [0,0,0]
  c5c.center = [0,0,0]
  c6c.center = [0,0,0]
  c7c.center = [0,0,0]
  c8c.center = [0,0,0]
  c9c.center = [0,0,0]
  
  c1d.center = [0,0,0]
  c2d.center = [0,0,0]
  c3d.center = [0,0,0]
  c4d.center = [0,0,0]
  c5d.center = [0,0,0]
  c6d.center = [0,0,0]
  c7d.center = [0,0,0]
  c8d.center = [0,0,0]
  c9d.center = [0,0,0]
  
  c1e.center = [0,0,0]
  c2e.center = [0,0,0]
  c3e.center = [0,0,0]
  c4e.center = [0,0,0]
  c5e.center = [0,0,0]
  c6e.center = [0,0,0]
  c7e.center = [0,0,0]
  c8e.center = [0,0,0]
  c9e.center = [0,0,0]
  
  c1f.center = [0,0,0]
  c2f.center = [0,0,0]
  c3f.center = [0,0,0]
  c4f.center = [0,0,0]
  c5f.center = [0,0,0]
  c6f.center = [0,0,0]
  c7f.center = [0,0,0]
  c8f.center = [0,0,0]
  c9f.center = [0,0,0]
  
  c1g.center = [0,0,0]
  c2g.center = [0,0,0]
  c3g.center = [0,0,0]
  c4g.center = [0,0,0]
  c5g.center = [0,0,0]
  c6g.center = [0,0,0]
  c7g.center = [0,0,0]
  c8g.center = [0,0,0]
  c9g.center = [0,0,0]
  
  c1h.center = [0,0,0]
  c2h.center = [0,0,0]
  c3h.center = [0,0,0]
  c4h.center = [0,0,0]
  c5h.center = [0,0,0]
  c6h.center = [0,0,0]
  c7h.center = [0,0,0]
  c8h.center = [0,0,0]
  c9h.center = [0,0,0]
  
  c1i.center = [0,0,0]
  c2i.center = [0,0,0]
  c3i.center = [0,0,0]
  c4i.center = [0,0,0]
  c5i.center = [0,0,0]
  c6i.center = [0,0,0]
  c7i.center = [0,0,0]
  c8i.center = [0,0,0]
  c9i.center = [0,0,0]
  
  