cluster     1   number of spheres in cluster    21
    1  52.04800  36.84400   6.40200   0.700    1                                
    2  54.67700  32.98000   6.29400   0.700    2                                
    3  50.11300  35.52900   4.35600   0.700    3                                
    4  51.02800  34.39800   3.87500   0.700    4                                
    5  52.91100  31.88100   4.28000   0.700    5                                
    6  54.18200  31.10000   3.87900   0.700    6                                
    7  54.49600  35.80300   5.01500   0.700    7                                
    8  51.99200  39.61600   4.91500   0.700    8                                
    9  55.43100  34.68000   4.61200   0.700    9                                
   10  52.81700  38.37800   4.51300   0.700   10                                
   11  49.89200  38.10200   4.58600   0.700   11                                
   12  50.78200  36.91400   4.11500   0.700   12                                
   13  52.42400  34.43200   4.59300   0.700   13                                
   14  53.36600  33.33300   4.09500   0.700   14                                
   15  53.09400  35.80800   4.33700   0.700   15                                
   16  55.32600  32.12200   3.97400   0.700   16                                
   17  50.55700  39.41300   4.38100   0.700   17                                
   18  52.21200  36.99900   4.84600   0.700   18                                
   19  54.77900  33.30100   4.76600   0.700   19                                
   20  56.44800  31.47500   4.58600   0.700   20                                
   21  50.01400  40.35700   3.79700   0.700   21