:  
    
  " "
        
              
           .
.          

       

    :        
             
     " "         
.      
       " "
             
         :
.        
             
:           
          
                
  " :          .
             
".          
      :      
               
".   
       "     
       "   
     " :        
          
            
                
".        
          " :   
              
           
      :        ".
             
            
    :           
               
              
.      
            "
         
                
              
              ".
 :             
           
         
        
            
.      
        " :     
            
.     
  " :        
           
           
               
". 
   "           
               
        
           
"        