import java.awt.*;
import java.applet.*;


public class Lab05 extends Applet
{
    public void paint(Graphics g)
    {

        int width = 980;
        int height = 630;

        int x1 = 10;
        int y1 = 640;
        int x2 = 990;
        int y2 = 640;
        g.drawRect(10,10,width,height);

        // hmm

        for
        (int W = 0; W <= 50; W++)
         {
            g.drawLine(x1,y1,x2,y2);
                x1= x1 + width/50;
                y2= y2 - height/50;
         }


        for
        (int W = 0; W <= 50; W++)
        {
        	g.drawLine(x2, y2, x1, y1);
        		x2 = x2 - width/50;
        		y1 = y1 - height/50;
        }

        int nx1 = 10;
        int ny1 = 10;
        int nx2 = 990;
        int ny2 = 10;
        for
        (int W = 0; W <= 50; W++)
        {
        	g.drawLine(nx1, ny1, nx2, ny2);
        		nx2 = nx2 - width/50;
        		ny1 = ny1 + height/50;
        }

        for
        (int W = 0; W <= 50; W++)
        {
        	g.drawLine(nx2, ny2, nx1, ny1);
        		nx1 = nx1 + width/50;
        		ny2 = ny2 + height/50;
        }
    }
}