    

   

 

       

               
.              

            
.      

               
              
.

              
               
.  

               
              
.

            
.       .  

            
             
.         

                
.          

           
             
. 

             
              
                 
. 

           
.  

             
. 

            
.       

 

               
.  

             
. 