2    4    2.0  10.0
  1    2    1    2    1    2    1    2 
  1    2    1    2    1    2    2    1 
  1    2    1    2    2    1    2    1 
  1    1    2    2    1    1    2    2 
  1    1    1    2    2    1    2    2 
  2    2    1    1    1    2    1    2 
  1    1    2    2    2    2    1    1