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

public class m0104302_02 extends Applet {
public void init()
	{
		setSize(480,480);
	}

  public void paint (Graphics g){
     int vsize = 480;

        int x, y, R, G, B;
        double X, sX, wX, dX, Y, sY, wY, dY, Z1, Z2, Z3;


        // *** BEGIN WINDOW *** //

        sX = 0.0;
        sY = 0.0;
        wX = 100.0;
        wY = 200.0;

        // *** END WINDOW *** //

        dX = wX/(double)vsize;
        dY = wY/(double)vsize;

        for(x = 0; x < vsize; x++){
            X = sX + dX * (double)x;

            for(y = 0; y < vsize; y++){
                Y = sY + dY * (double)y;

                // *** BEGIN YOUR PROGRAM *** //

                Z1 = x-y;
                Z2 = x * x;
                Z3 = y * y;

                R =0;
                G = (int)Z2 % 255 & (int)Z3 % 255 ;
                B =0;

                // *** END YOUR PROGRAM *** //
 g.setColor(new Color(R,G,B));
  g.fillRect(x,y,x,y);

            }
        }
    }
}