#####   #####  #       
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      #     #       # #    #  
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            #       # ####### 
      #     # #     #      #  
       #####   #####       #  

      #       #######  #####  
      #    #  #       #     # 
      #    #  #             # 
      #    #  ######   #####  
      #######       # #       
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  ,----- .123 4567 89ab cdef -----,
  |                               |
  | ..   .... .... .... ....   .f |
  | 1.   ...1 6aaa af3e 79cb   1f |
  | 2.   .197 75b5 9985 3e1f   2f |
  | 3.   a.3e 5fa2 d7cb 15e6   3f |
  '===   ==== ==== ==== ====   ==='
   ak:   5257 94