          

        

480            

   

           

           

             

  8000         

           

         4  25 

           

        

      

4          

         

          

34        31      

    10     5  15

           

  

            

         

         

        

          

          

           

         

         

         

         

         

           

         

         

         

         

        

          100  

        40  

          

          511

        480    

           

          

 

  

          

   

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  