cluster     1   number of spheres in cluster    12
    1   6.49900  68.77800  64.85900   0.700    1                                
    2   5.27300  69.01500  61.83200   0.700    2                                
    3   3.03200  69.28900  62.91000   0.700    3                                
    4   3.32700  65.35400  64.51400   0.700    4                                
    5   3.40500  66.73400  64.28900   0.700    5                                
    6   4.19200  64.48500  63.86800   0.700    6                                
    7   5.18500  66.38300  62.78600   0.700    7                                
    8   5.16200  69.40400  64.32600   0.700    8                                
    9   4.33000  67.27900  63.41700   0.700    9                                
   10   5.12900  65.00500  62.98700   0.700   10                                
   11   4.46600  68.73100  63.11900   0.700   11                                
   12   5.98100  64.14900  62.35100   0.700   12