♣♣          
    ♣♣♣♣♣♣       ♣♣       ♣♣♣P♣  ♣♣♣♣♣♣  
  ♣♣♣····♣♣♣♣   ♣·♣♣ ≈   ♣♣··♣   ♣P···♣♣ 
 ♣♣···♣·····♣♣♣♣···♣≈≈   ♣·♣·♣   ♣··<··♣♣
 ▒··♣♣♣♣♣·····♣···≈≈≈♣   ♣♣·♣♣   ♣······♣
▒▒··♣   ♣♣♣♣♣···≈≈≈♣      ♣·♣♣   ♣·♣··♣♣♣
▒··♣♣       ♣♣≈≈≈≈♣♣      ♣♣·♣♣  ♣♣··♣♣  
▒▒·♣♣♣    ♣♣♣≈)≈♣♣♣        ♣♣·♣   ♣♣·♣♣  
 ▒▒··♣♣♣♣♣♣≈≈≈··♣♣♣      ♣♣♣··♣    ♣··♣  
  ▒▒·····♣♣♣♣♣♣···♣♣♣   ♣♣··♣♣♣    ♣♣·♣  
   ▒▒▒·····♣♣ ♣♣♣···♣♣ ♣♣·♣♣♣       ♣·♣  
     ▒▒·g···♣♣  ♣♣♣♣·♣♣♣·♣♣       ♣♣♣·♣  
      ▒▒·····♣     ♣♣···♣♣♣♣♣   ♣♣♣··♣♣  
       ▒▒g····♣     ♣♣♣♣····♣♣♣♣♣··♣♣♣   
         ····♣♣        ♣♣♣♣♣·····♣♣♣     
         ·▒▒···♣           ♣♣♣P♣♣♣       
         ·▒  ▒··             ♣♣♣         
         ·▒    ▒                         
         ·▒                              
         ··      ∆