cluster     1   number of spheres in cluster    21
    1  36.81800  -4.87000   9.33000   0.700    1                                
    2  35.17100  -5.18100   8.05700   0.700    2                                
    3  37.59600  -4.47800   8.25700   0.700    3                                
    4  35.94500  -4.79100   6.97300   0.700    4                                
    5  31.04700  -8.36200  11.57600   0.700    5                                
    6  31.84600  -7.72800  10.61900   0.700    6                                
    7  32.02400  -6.87300  13.27300   0.700    7                                
    8  32.91100  -2.92700  12.04100   0.700    8                                
    9  32.96000  -3.96300  13.19400   0.700    9                                
   10  33.71300  -3.50300  10.86100   0.700   10                                
   11  35.61300  -5.22600   9.23000   0.700   11                                
   12  37.16500  -4.43100   7.07600   0.700   12                                
   13  31.12300  -7.94400  12.93100   0.700   13                                
   14  32.73700  -6.66700  10.96600   0.700   14                                
   15  32.82900  -6.25300  12.28100   0.700   15                                
   16  33.77700  -5.13500  12.68100   0.700   16                                
   17  34.60200  -4.58900  11.46700   0.700   17                                
   18  34.78800  -5.68200  10.42800   0.700   18                                
   19  37.94800  -4.03500   6.00500   0.700   19                                
   20  30.31900  -8.57600  13.90800   0.700   20                                
   21  33.49100  -6.09400   9.95800   0.700   21