cluster     1   number of spheres in cluster    21
    1   2.22700  34.70000  -3.72400   0.700    1                                
    2   0.96200  29.84900   1.44500   0.700    2                                
    3   0.26500  34.47600  -0.00700   0.700    3                                
    4   2.40100  32.02100  -2.93500   0.700    4                                
    5   1.93700  30.34400  -1.20500   0.700    5                                
    6   3.20700  29.61500  -5.36400   0.700    6                                
    7   3.66100  29.89300  -2.95100   0.700    7                                
    8   2.61900  30.77900  -2.35000   0.700    8                                
    9   1.43700  32.86800  -2.40300   0.700    9                                
   10   0.96800  31.14000  -0.60500   0.700   10                                
   11   3.20300  29.04100  -4.11400   0.700   11                                
   12   0.66800  32.45900  -1.20400   0.700   12                                
   13   2.78400  27.63500  -3.99200   0.700   13                                
   14   2.45400  27.61700  -6.29600   0.700   14                                
   15   2.76000  27.00000  -2.82300   0.700   15                                
   16   2.09600  26.92300  -7.37600   0.700   16                                
   17   2.83500  28.90800  -6.43400   0.700   17                                
   18   2.44600  26.98400  -5.11900   0.700   18                                
   19   1.19500  34.09200  -2.95900   0.700   19                                
   20   0.31500  30.72500   0.51900   0.700   20                                
   21  -0.25400  33.32400  -0.67500   0.700   21