cluster     1   number of spheres in cluster    21
    1 -12.94500  56.47000  50.23000   0.700    1                                
    2 -18.00600  57.40900  50.52000   0.700    2                                
    3 -17.05300  53.97400  51.29900   0.700    3                                
    4 -17.08800  58.89100  48.74300   0.700    4                                
    5 -17.27500  56.32400  51.27700   0.700    5                                
    6 -15.74000  53.97600  50.53600   0.700    6                                
    7 -14.96000  55.24700  50.83700   0.700    7                                
    8 -15.85800  56.48800  50.74900   0.700    8                                
    9 -16.45600  59.09900  47.35200   0.700    9                                
   10 -16.74200  60.52400  46.91000   0.700   10                                
   11 -18.11200  56.65900  48.13500   0.700   11                                
   12 -17.28300  57.43200  49.16000   0.700   12                                
   13 -15.00900  58.83000  47.31700   0.700   13                                
   14 -13.82400  55.35000  49.88400   0.700   14                                
   15 -16.02100  53.85500  49.13800   0.700   15                                
   16 -15.78100  61.23400  46.53100   0.700   16                                
   17 -17.74300  55.50500  47.81900   0.700   17                                
   18 -17.93600  60.89300  46.98400   0.700   18                                
   19 -19.10600  57.24200  47.69000   0.700   19                                
   20 -17.85400  55.06100  50.88700   0.700   20                                
   21 -16.01400  56.80600  49.34700   0.700   21