3.          
  
                                                                                                                                                                                                                                                                                                    
  
                                                                                   49           (   )    22                                              
  
                                                                                                                                                                                      
 
         (    )                                                                                                                                                 
  
                                                                             
  
                              
  
           
           
          
           
          
          
  
                                                                                                                                                          
  
                                                                                                
  
                        
  
                                                                                                                                                                                                                                                         
  
            
  
                                                                                                                                                                                                                                                                    
  
                                                                                                                                     
 
          
  
                                                                                                                                                                                                                                                                       
  
                    
 

             