// Program: 4033
//  Author: Manuel J. A. Eugster ( e0126312@student.tuwien.ac.at )
//  FileId: $Id: Main.java,v 1.1 2002/01/14 17:28:09 heder Exp $



import java.lang.*;
import eprog.*;
import Wider.*;



// CLASS:
//    Work out a resistor network.
//
public class Main
{
  // METHOD:
  //    Reads resistor description string, instanes needed classes
  //    and outputs the rounded calculated value
  //
  public static void main( String [] args ) throws Exception
  {
    StringBuffer expr = readInput();


    try
    {
      Scanner scanner = new Scanner( expr );
      Parser parser = new Parser( scanner );
      
      EprogIO.println( Math.round( parser.start() ) );
    } catch ( Exception e )
    {
      EprogIO.println( "FALSCHE EINGABE" );
    }
    

    return;
  }
  
  
  
  // METHOD:
  //    Reads string and returns it.
  //
  private static StringBuffer readInput()
  {
    return( new StringBuffer( EprogIO.readWord() ) ); 
  }
}