User guide

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 
/!    /  0
    $ $    

- "       
  1       0
2    
("    +  " 1
   
  2  
   $    0
+ 
       2  
       
       3 0
4       0

5  
     
     6 76
 82    + 
      $
       6  $
  
       
/   $  

 "      $  
    +
9  "2    2 2
  "     :"  
2     "
0  
 
 !
  

* 
% !  !