                      
                              .


	 "     
."       
        
 .
	        :

------------------------------------------
|  ..(.)..            |
|  ...(.)..            |
| ....(,,)...            |
| ......(,,)...            |
| .......(,,-)..            |
| ........(,,-)..            |
|. .   ..            |
------------------------------------------

F1  F2/+  F3  F4  F10 

	     
 .   "  "  , 
      .  
    .    
 " ",     
 .      
 .
	 (,,)    ,   
      . 
"-"        , 
       ,  
      .
	 ". .   " 
     .   
         
   .
