7                         5
         6.969615506024416         5.347296355333861
         6.879385241571817         5.684040286651338
         6.732050807568878                         6
         6.532088886237956         6.285575219373079
         6.285575219373079         6.532088886237956
                         6         6.732050807568877
         5.684040286651338         6.879385241571817
         5.347296355333861         6.969615506024416
                         5                         7