2.0
  3.0
  3.0
  3.0
  3.0
  4.0
  4.0
  4.0
  4.0
  5.0
  5.0
  5.0
  5.0
  6.0
  6.0
  6.0
  7.0
  7.0
  7.0
  8.0
  8.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
  9.0
 10.0
 10.0
 10.0