▒▒▒▒        
           ··▒        
        ▒▒▒▒·▒        
       ▒▒··▒·▒        
 ▒▒▒▒▒▒▒<··▒S▒▒▒▒▒▒▒▒▒
(·····················
 ▒▒▒▒▒▒▒···▒·▒▒▒▒▒·▒▒▒
       ▒···▒·▒        
      ·····▒·▒        
    ▒·▒▒▒··▒·▒        
    ▒   ▒··▒·▒        
        ▒··▒·▒        
        ···▒(▒        
        ·····