cluster     1   number of spheres in cluster    12
    1   6.39200  11.29600  23.37000   0.700    1                                
    2   6.45500  15.11300  25.51000   0.700    2                                
    3   5.27900  15.79400  25.72300   0.700    3                                
    4   6.44400  13.90500  24.83900   0.700    4                                
    5   4.08800  15.28500  25.24600   0.700    5                                
    6   5.17600  12.12500  23.67700   0.700    6                                
    7   5.24600  13.37200  24.35100   0.700    7                                
    8   4.05800  14.06100  24.57200   0.700    8                                
    9   2.88500  13.48700  24.09000   0.700    9                                
   10   4.00100  11.63600  23.23100   0.700   10                                
   11   2.85600  12.32100  23.42900   0.700   11                                
   12   1.36400  14.29500  24.27600   0.700   12