cluster     1   number of spheres in cluster    18
    1   2.23600  31.61100   7.12800   0.700    1                                
    2  -0.63300  32.51500   8.96500   0.700    2                                
    3   0.33300  23.56300  11.23700   0.700    3                                
    4  -0.01200  24.28500   9.94800   0.700    4                                
    5   1.53600  24.22300  11.90300   0.700    5                                
    6  -0.34200  25.73500  10.24800   0.700    6                                
    7   2.00400  25.52800  11.24300   0.700    7                                
    8   1.46300  27.25300   9.55600   0.700    8                                
    9   1.13100  31.87400   7.87000   0.700    9                                
   10   2.81800  30.35400   7.12100   0.700   10                                
   11   0.58900  30.79800   8.63900   0.700   11                                
   12   1.23700  29.47200   8.63200   0.700   12                                
   13   0.91100  26.45600  10.72300   0.700   13                                
   14   3.92700  30.21300   6.34000   0.700   14                                
   15  -0.47600  31.23700   9.29000   0.700   15                                
   16   0.33100  32.90200   8.10400   0.700   16                                
   17   2.33100  29.31300   7.84900   0.700   17                                
   18   0.70800  28.45600   9.40800   0.700   18