// A program that reads an infix expression and outputs reverse Polish.
// Barry Cornelius, 19 June 2000
import java.io. BufferedReader;
import java.io. InputStreamReader;
import java.io. IOException;
public class ToReversePolishProg
{
   public static void main(final String[] pArgs) throws IOException
   {
      final BufferedReader tKeyboard =
                    new BufferedReader(new InputStreamReader(System.in));
      System.out.print("Type in an expression (using infix notation): ");
      System.out.flush();
      String tInfixString = tKeyboard.readLine();
      Infix tInfix = new Infix(tInfixString);
      System.out.println("The equivalent reverse Polish is: " +
                         tInfix.toReversePolish());
   }
}