    

        81                                                                                                                  
                                                                                                   10 8       
                                                                                                                                                                
           81                                                                                                                                                                                                                                                                                                                                                          
                                             
                                                                                                                                                               
                                 
          
         
          
         
                                                                                                                                                                                              
         50                                                                                                                                                                                                  
                          
                                         