cluster     1   number of spheres in cluster    12
    1  72.59700  45.12300  42.98800   0.700    1                                
    2  73.88900  47.21100  42.19800   0.700    2                                
    3  73.60600  45.75300  42.37800   0.700    3                                
    4  74.45400  44.67700  41.87600   0.700    4                                
    5  74.73500  47.85300  43.32400   0.700    5                                
    6  74.96400  49.34600  42.92900   0.700    6                                
    7  74.05100  47.68900  44.66100   0.700    7                                
    8  74.01300  43.50100  42.33100   0.700    8                                
    9  75.36600  49.61500  41.75900   0.700    9                                
   10  75.46600  44.77400  41.12200   0.700   10                                
   11  74.73600  50.19000  43.84400   0.700   11                                
   12  72.81800  43.78800  43.06400   0.700   12