cluster     1   number of spheres in cluster    12
    1   3.03700  64.81000  65.78400   0.700    1                                
    2   4.02400  62.65600  64.73000   0.700    2                                
    3   4.16700  63.29300  62.63800   0.700    3                                
    4   5.14300  68.66900  64.78600   0.700    4                                
    5   4.59400  67.38700  65.15900   0.700    5                                
    6   5.34400  69.02700  63.42700   0.700    6                                
    7   4.43300  66.80700  62.80200   0.700    7                                
    8   4.22900  66.42300  64.12600   0.700    8                                
    9   4.96200  68.05400  62.45700   0.700    9                                
   10   3.58700  65.02700  64.46300   0.700   10                                
   11   4.41000  63.78500  63.97900   0.700   11                                
   12   5.07200  68.25500  61.12700   0.700   12