︽    ︾



         
           
          
          
         
          
             
         
          
                  
     
          
        
         
           
          
           
           
            
                    
                 
           
          
              
︾           
        ︽ 
              
           
                    
         
          
            
          
           
          
           
          
    ︽  ︾    
              
            
         
             
                  
                   
   
          
              
          
            
            
            
            
             
           
           
            
           
       30     
           
            
                   
  
           
          
          
          
           
            
             
            
                 
             