c     Created on: Monday, June 26, 2006 at 13:09
    1     0         (-1 -2 -3 -4 -5 -6 -7 )
    2     0         (-1 -9 -10 -11 -12 -13 -14 )
    3     0         (1 -16 -17 -18 -19 -20 )
    4     0         (20 -9 -2 -11 -4 -26 )
    5     0         (1 :2 :3 :4 :5 :6 :7 )(1 :9 :10 :11 :12 :13 :14 )
            (-1 :16 :17 :18 :19 :20 )(-20 :9 :2 :11 :4 :26 )

    1         p 0 0 -1 -20 
    2         p -1 0 0 -7.5 
    3         p 0 -1 0 -7.5 
    4         p 1 0 0 17.5 
    5         p 0 1 0 17.5 
    6         p -0.51555198952256 0 0.85685829989522 21.839109075437 
    7         p 0.5 0 0.86602540378444 34.730762113533 
    8         p 0 0 -1 -20 
    9         p -6.1230317691119e-017 -1 0 17.5 
   10         p 1 -6.1230317691119e-017 0 -7.5 
   11         p 6.1230317691119e-017 1 0 -7.5 
   12         p -1 6.1230317691119e-017 0 17.5 
   13         p -3.1567412104755e-017 -0.51555198952256 0.85685829989522
                 34.727908813501
   14         p 3.0615158845559e-017 0.5 0.86602540378444 22.230762113533 
   15         p 0 0 1 20 
   16         p 1 0 0 20 
   17         p 0 -1 0 20 
   18         p -1 0 0 20 
   19         p 0 1 0 20 
   20         p 0 0 -1 20 
   21         p 0 0 1 -20 
   22         p 0 -1 0 17.5 
   23         p -1 0 0 -7.5 
   24         p 0 1 0 -7.5 
   25         p 1 0 0 17.5 
   26         p 0 0 -1 30 

mode  N
imp:N   1 3r         0             $ 1, 5