N 15
                                           
                                            
                                                  
                                            25  1997 . N 66
   
                          
              , 
              ,
                 , 
                              
   
   +------------------------------------------------------------------+
    N                            
   /                               
                                                    
                                                          (- 
                                                          ,     
                                                          -
                                                          )     
   +---+--------------------+--------------------------------+--------
    1          2                         3                   4    
   +------------------------------------------------------------------
                      1.                        
                                                                     
   1.              1       
                                       2       
                                           1   
                                         
                                                                  
   2.                           
                                :               
                                     1       
                                                                  
   3.               1       
                       6    
                                                                  
   4.  -                              
               - :                       
                                           
                                               1       
                                                                  
   5. ;                     1       
                                                 
                                                       
                                                                  
   6.                     2       
                                  6    
                                                                     
             2.                  
                                                                     
   7.                      1       
                         6    
                              1   
                                                   
                                                         
                                                                  
   8.                 1       
                         12   
                                           1   
                                                                  
   9.                 1       
                                       6    
                                                                  
   10.                1       
                         12   
                                                                  
   11.                1       
                              2       
                                                                  
   12.                   1       
                                                 
                                                                  
   13. -          1       
       ;               6    
                                                  
                                                         
                                                                  
   14.            1       
                12   
                             1   
                                                
                                                                  
   15.             1       
                       12   
                                 ,           
                                          
                               :                          
                                     1       
                                   12   
                                           
                                           1   
                                                                  
   16.              1       
       ;                6    
                                      
       ;       :                     
       -                       
       -               6    
       ;                           
           :                           
                          1   
                                                        
                                                                  
   17.              1       
                                            
                               :               
                                    1       
                                  12   
                                 ,           
                                          
                               :                          
                                     1       
                                   12   
                                           
                                           1   
                                                                  
   18.              1       
                                         4   
                                                                  
   19.                      1       
                        
                                         
                                           1   
                                                                  
   20.  ,               1       
                                                  
                                                                  
   21. -        1       
                                   12   
                                           1   
                                                                  
   22.                    1       
       ;         6    
                                                   
                                                             
   +------------------------------------------------------------------+