import java.awt.*;
import javax.swing.*;

public class Myst2 extends JApplet
{
    public void paint(Graphics g)
    {
        Graphics2D g2 = (Graphics2D)g;
        Point x = new Point(0,0);
        Point y = new Point(500,0);
        Point z = new Point(250,500);
        draw(x,y,z,2,g2);
    }
    public void draw(Point x, Point y, Point z, int n, Graphics2D g2)
    {
        if(n==0)
        {
            g2.drawLine((int)x.getX(),(int)x.getY(),(int)y.getX(),(int)y.getY());
            g2.drawLine((int)z.getX(),(int)z.getY(),(int)y.getX(),(int)y.getY());
            g2.drawLine((int)x.getX(),(int)x.getY(),(int)z.getX(),(int)z.getY());
        }
        else
        {
        Point xy = new Point((int)(x.getX()+y.getX())/2,(int)(x.getY()+y.getY())/2);
        Point xz = new Point((int)(x.getX()+z.getX())/2,(int)(x.getY()+z.getY())/2);
        Point yz = new Point((int)(z.getX()+y.getX())/2,(int)(z.getY()+y.getY())/2);
        draw(x,xy,xz,n-1,g2);
        draw(yz,xz,xy,n-1,g2);
        draw(xy,y,yz,n-1,g2);
        draw(xz,yz,z,n-1,g2);
    }
    }

}