cluster     1   number of spheres in cluster    21
    1   1.64700  67.09000  68.40400   0.700    1                                
    2   5.40600  61.80700  62.37900   0.700    2                                
    3   2.80100  63.64300  65.50700   0.700    3                                
    4   3.68200  62.91400  64.71400   0.700    4                                
    5   3.70300  68.15000  65.37600   0.700    5                                
    6   2.51600  68.16000  66.34300   0.700    6                                
    7   1.74600  65.78800  66.32600   0.700    7                                
    8   5.16100  68.16400  62.24400   0.700    8                                
    9   2.59800  67.90700  61.94100   0.700    9                                
   10   2.47000  67.53400  63.20100   0.700   10                                
   11   2.70200  65.05400  65.45100   0.700   11                                
   12   4.54000  63.55800  63.79200   0.700   12                                
   13   3.54400  65.71000  64.54700   0.700   13                                
   14   4.44400  64.97500  63.73300   0.700   14                                
   15   3.91800  68.15300  61.26600   0.700   15                                
   16   5.01200  67.15200  63.40300   0.700   16                                
   17   3.64800  67.20600  64.16400   0.700   17                                
   18   2.38200  66.88800  67.10600   0.700   18                                
   19   4.11300  67.12900  60.32300   0.700   19                                
   20   5.17100  65.77600  62.88500   0.700   20                                
   21   5.60700  62.95600  63.14700   0.700   21