import java.lang.*;
import java.io.*;

// Released under the GNU General Public License  Version 2, June 1991.

public class E                                              // The main program
 {
   public static void main(String[] argv)
    { System.out.println("--- Simple Expression Parser, L.Allison ---");

      Syntax syn = new Syntax( new Lexical(System.in) );
      Expression e = syn.exp();                          // parse an Expression
      System.out.println( e.toString() );

      System.out.println("--- done ---");
    }//main

 }//E class                 L. Allison, September 2001,