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     This procedure concatenates (combines) two data files into a big     
     file, with at least:                                                   
            - 6,100 combinations for the 3-digit game                       
            - 8,100 combinations for the 4-digit game.                      
     If you accepted the suggestions, your REAL data files were named       
     DATA-3 and DATA-4, respectively.                                       
     The procedure will concatenate DATA-3 and DATA-4 with SIM-3 and        
     SIM-4, respectively. The resulting files will be named:                
     D3 and D4, respectively.                                               
                                                                            
      If you did not accept the naming suggestions and named your files    
     differently, you should modify PREP-34.BAT in order to run the         
     preparation procedure automatically. Make your changes to lines        
                 COPY DATA-3+SIM-3 D3                                       
                 COPY DATA-4+SIM-4 D4                                       
     You can use ED-FILE.EXE to update PREP-34.BAT.                         
                                                                            
                 >>>Press a key to proceed<<<                               
  
