: 

     

 

          
           
             
.     

        

 

             
    .        
             
: 

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

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

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

            : 
             
             
.       

              
              
.             

            
.        

       :       
               
           
       .       
.       

             
            
.      

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

           : 
           
               
.   

              
               
             
              
. 