cluster     1   number of spheres in cluster    21
    1   2.73300 -40.28200  22.00900   0.700    1                                
    2   2.64200 -34.54800  26.42300   0.700    2                                
    3   4.89400 -34.70900  25.25500   0.700    3                                
    4  -0.43200 -36.89900  22.38900   0.700    4                                
    5  -0.98000 -36.66100  20.06600   0.700    5                                
    6   1.56700 -38.16000  23.12500   0.700    6                                
    7   3.62200 -38.38400  20.63200   0.700    7                                
    8   3.77700 -36.87600  23.53700   0.700    8                                
    9   3.00800 -36.15800  24.60200   0.700    9                                
   10  -1.32500 -36.55300  21.39700   0.700   10                                
   11   0.82300 -37.37200  22.07400   0.700   11                                
   12   0.28400 -37.13000  19.70300   0.700   12                                
   13   1.21100 -37.49300  20.72500   0.700   13                                
   14   2.14200 -37.75700  18.77000   0.700   14                                
   15   3.53600 -38.99200  22.03900   0.700   15                                
   16   3.49100 -35.20200  25.37500   0.700   16                                
   17   0.89800 -37.31100  18.51400   0.700   17                                
   18   2.35000 -37.87900  20.11400   0.700   18                                
   19   3.01900 -38.02100  23.00500   0.700   19                                
   20   3.30200 -38.05900  17.57800   0.700   20                                
   21  -2.86100 -36.00100  21.83800   0.700   21