 88888888888   8888888888   8888888888  888888   8888888
  87777777778 877777777778 877777777778 8777778  877778
  877777777778777777777777877777777777787777778 8777778
  177711117771777711117777177771111777717777771 1777771
  17771  1777177771  17777177771  177771777777717777771
  47774  4777477774  47777477774  477774777477777777774
  47774  477f4f7774  47777477774  4777f4f77477777777774
  47774  4ffe4eff74  47777477774  47ffe4eff447777777774
  477f4  4eee4eeef4  47777477774  4feee4eee447777747774
  4ffe4 4eeee41eeee4 4ff77477ff4 4eeee14eee44fff7447774
  4eee44ee1114111eee44eeff4ffee44eee111411e4 4ee4 4f774
  4eee4111111441111ee4eee4 4eee4ee1111441114 4ee4 4eff4
  4e1111111144 4411111144   4411111144 44114  44  4eee4
  4111111444     441144       441144     444  44  4eee4
  4111144          44           44            4   41ee4
  41144                                           41114
  444                                             44114
 44                                                 4444
