:

     

           
              
    .        
.          

       

            
        :     
     .        
                
             .   
              
             
              
. 

   ()       
             :
              
. 

            :  
              
    .        
.          

             
     :          
              
.            

           :  
            
.         

        :   
.            

      :       
               
.      

           :  
          .      
        .      
             

             
              
             :  
       ;          
          . 
               
.

           
         :    
             
           .  
            
                
             
.              

             
             
           
              
.       

             
            
.        

              : 
            
              
. 

              
            
              
.

             
          
           
          
          
           
.  