cluster     1   number of spheres in cluster    20
    1   4.97000   2.47800  -4.07200   0.700    1                                
    2   5.39700  -3.08400  -6.17000   0.700    2                                
    3   8.06300   0.92800  -4.86800   0.700    3                                
    4   7.53600   0.30400  -7.12500   0.700    4                                
    5   2.97200  -0.99700  -3.79200   0.700    5                                
    6   2.72900  -0.97300  -6.18500   0.700    6                                
    7   9.42200   1.06900  -5.20400   0.700    7                                
    8   8.88600   0.43800  -7.48200   0.700    8                                
    9   1.57600  -1.17100  -3.65700   0.700    9                                
   10   1.35100  -1.14400  -6.07100   0.700   10                                
   11   4.89900   1.76800  -5.40100   0.700   11                                
   12   5.81800  -2.06600  -5.15300   0.700   12                                
   13   7.10800   0.54900  -5.81500   0.700   13                                
   14   3.55900  -0.89800  -5.06400   0.700   14                                
   15   9.81900   0.81700  -6.52200   0.700   15                                
   16   0.78100  -1.24400  -4.80000   0.700   16                                
   17   5.63300   0.42600  -5.44300   0.700   17                                
   18   5.05900  -0.74500  -5.23100   0.700   18                                
   19  11.16100   0.94400  -6.82900   0.700   19                                
   20  -0.58700  -1.44400  -4.72900   0.700   20