♣♣♣♣        
♣♣♣..♣♣♣      
♣......♣♣     
♣...<...♣     
♣......♣♣     
♣♣....♣♣      
 ♣♣♣♣l.♣      
   ♣.a♣♣      
   ♣♣..♣      
    ♣...♣     
    ♣.....    
    ♣......♣  
    ≈.......♣ 
   ≈≈..≈......
   ≈≈..≈≈♣....
  ..≈..≈≈≈♣...