import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

class Program extends Frame
{
	Program()
	{
		addWindowListener(new AblakKezeles());
		setSize(400, 300);
		setVisible(true);
	}
	
	class AblakKezeles extends WindowAdapter
	{
		public void windowClosing(WindowEvent e)
		{
			System.exit(0);
		}
	}
	
	public static void main(String[] args)
	{
		new Program();
	}	
}