cluster     1   number of spheres in cluster    21
    1   1.65700  29.89700   6.75000   0.700    1                                
    2  -0.74500  34.06100   6.36700   0.700    2                                
    3   3.76500  31.08800   4.75000   0.700    3                                
    4   2.94800  32.28100   4.20300   0.700    4                                
    5   1.20000  34.87700   4.24400   0.700    5                                
    6  -0.00800  35.72500   3.82100   0.700    6                                
    7  -0.63200  31.07000   5.25900   0.700    7                                
    8   1.67400  27.13600   5.29100   0.700    8                                
    9  -1.49400  32.27700   4.81700   0.700    9                                
   10   0.92400  28.43600   4.89400   0.700   10                                
   11   3.85400  28.53600   4.99200   0.700   11                                
   12   3.01900  29.74600   4.55600   0.700   12                                
   13   1.53900  32.32600   4.84000   0.700   13                                
   14   0.64300  33.44900   4.26900   0.700   14                                
   15   0.79600  30.98300   4.66700   0.700   15                                
   16  -1.21700  34.77000   3.99100   0.700   16                                
   17   3.11600  27.22200   4.79000   0.700   17                                
   18   1.60400  29.77700   5.20600   0.700   18                                
   19  -0.74300  33.61700   4.89800   0.700   19                                
   20  -2.35900  35.47500   4.45300   0.700   20                                
   21   3.65000  26.25000   4.23000   0.700   21