cluster     1   number of spheres in cluster    21
    1  31.49900  -7.39200  62.32100   0.700    1                                
    2  34.15800 -11.51500  65.93100   0.700    2                                
    3  27.83400 -12.48300  64.08000   0.700    3                                
    4  33.88400 -10.51400  64.80800   0.700    4                                
    5  33.22500 -12.70300  65.83500   0.700    5                                
    6  32.43300 -10.18300  64.73100   0.700    6                                
    7  31.60900 -11.46500  64.67600   0.700    7                                
    8  29.37800 -12.62000  63.98900   0.700    8                                
    9  30.08900 -11.39300  64.64000   0.700    9                                
   10  31.63500  -8.16100  63.62200   0.700   10                                
   11  32.21900  -9.35900  63.57000   0.700   11                                
   12  27.29800 -11.44800  63.25500   0.700   12                                
   13  34.56900  -9.32400  65.04000   0.700   13                                
   14  29.70400 -12.68800  62.64100   0.700   14                                
   15  29.60300 -11.35700  65.96800   0.700   15                                
   16  32.47000 -15.02500  66.80700   0.700   16                                
   17  34.89000 -14.26500  67.16600   0.700   17                                
   18  31.17000  -7.68700  64.65100   0.700   18                                
   19  33.19500 -13.31600  68.50000   0.700   19                                
   20  31.95500 -12.20600  65.82200   0.700   20                                
   21  33.43800 -13.95900  67.18700   0.700   21