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                                                          N. 1
                                                       
                                                       
                                                      
                                                        
                                                      
                                                         
                                                                
   
                                    
         ______________________________________  (, )
              (   )
   
                  
   
             _______,   N.  ______,  N. ______,
     N. ______
   
    _____________________________________________________________________
             (, ,  ,  
                              )
   
    +-------------------------------------------------------------------+
      --- N N. -- 
    .          -.  -  -  
    -              -  - - -     
                   -   -         
                         / -    -         
                             -                
                                                      
    +------+-----+------+---+-----+------+-----------+-----------+------
       1    2    3    4   5    6        7         8        9   
    +-------------------------------------------------------------------
    1.                                         
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
    2.                                       
                                                                       
    +-------------------------------------------------------------------+
   
           _______________________________
                              ()   ( ..)
          ..
   
           () _______________________
                                         ( ..)