N 5
                                           
                                            
                                                  
                                            16  1997 . N 63
   
                          
              , 
                   
                   
   
   +----------------------------------------------------------------+
    N           -
   /                                
                                                        (-
                                                       ,    
                                                       - 
                                                       )      
   +---+------------------------+-------------------------+---------
    1             2                       3                4    
   +----------------------------------------------------------------
                      I.                      
   +----------------------------------------------------------------
   1. ; -                 
      ;     :                         
                                  1        
                                                                
   2.   -      1        
      ; ;                                   
                                                          
                                                                
   3.                        -           
                                          
                                 :                 
                                  1        
                                                                
   4.                    1        
                               4    
                                                                
   5.         -          
                                   -         
                                  :           
                                  1        
                               4    
                                                                
   6.            1        
                                4    
                                                                
   7.         1        
             -         
                                               
                                 -           
                                :                         
                                        
                                                                
   8.                 1        
                                       
   +----------------------------------------------------------------
                II.              
                                 
   +----------------------------------------------------------------
   9.   ;                 
        ;      -           
      ; ;     -          
       ; -   (,           
                          , -         
                                ,  - -         
                                , -            
                                , ,          
                                 -            
                                ),   -         
                                 ,            
                                    -         
                                :                    
                                   
                                       
                                   -           
                                 -  -           
                                  -         
                                :                    
                                        1    
                                             
                                 :                     
                                   
                                             
                                          
                                                    
                                               
                                   -           
                                  (-           
                                , -           
                                , , -          
                                  -          
                                 ) -           
                                :                         
                                   
   +----------------------------------------------------------------+