cluster     1   number of spheres in cluster    21
    1 -75.87900 -11.79900  40.78900   0.700    1                                
    2 -77.59200 -13.88000  41.65400   0.700    2                                
    3 -78.33600 -16.63600  39.59700   0.700    3                                
    4 -75.31900 -10.56100  41.01500   0.700    4                                
    5 -74.34200 -10.42000  42.06300   0.700    5                                
    6 -74.54800 -12.76000  42.57900   0.700    6                                
    7 -78.37400 -14.94800  40.95300   0.700    7                                
    8 -76.14700 -14.24500  41.35500   0.700    8                                
    9 -77.32500 -15.88100  40.43200   0.700    9                                
   10 -73.98000 -11.52400  42.81200   0.700   10                                
   11 -75.49800 -12.91300  41.56400   0.700   11                                
   12 -79.28800 -15.66900  41.80700   0.700   12                                
   13 -80.15500 -16.82500  37.55100   0.700   13                                
   14 -80.47600 -18.29800  39.75400   0.700   14                                
   15 -73.83600  -9.33200  42.28800   0.700   15                                
   16 -74.20300 -13.71700  43.27900   0.700   16                                
   17 -79.79900 -19.37000  37.48800   0.700   17                                
   18 -76.33400 -14.86700  39.98600   0.700   18                                
   19 -78.06600 -17.77200  38.84300   0.700   19                                
   20 -75.68400  -9.48800  40.27200   0.700   20                                
   21 -79.60800 -18.08200  38.39600   0.700   21