     
 
       / + 18 / 
 
                           
 
                                                                                                                  8                    
 
                                                                                                                             
 
                                                     13                                                                                                                                                                                                                           
 
                                                                                                                                                                                                   
-   
-      
-             
 
-           
-                                 
-        
 
                                             2                                                                                                                                                                                                                                    
 
-                 
-             
-             
-                                                                       
 
                                                      
 
                                                                                  7               
 
                                                                    10                                                                 
 
                                                                                                    
 
                                                                                                                           
 
           