                 .

                :

----------------------------------
| ...........          |
| ............          |
|...(,,)..          |
| .(,,)..          |
|/..(+/-)..          |
| ....(,,)..          |
|..(,,)............          |
| ........          |
----------------------------------

F1 .F2/+  . F3  F4  F10-.

             
.     ,   
,       ,  
   .    
.
	      . 
     ""   ,  
  .       .
             
     .
               ,  
        F3.
         
   .     
   Enter,       
    .      
      .
               
           
  .      
  ,      
    F4    .
	     
         
.        
       .
