import java.applet.*;
import java.awt.*;
import java.lang.Math;


public class m0104329_2 extends Applet {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	  public void paint (Graphics g){
		     int vsize =480;

		     int x, y, R, G, B;
		        double dR, dG, dB, X, sX, wX, dX, Y, sY, wY, dY;
		        int Z1, Z2, Z3, Z4;


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

		        sX = -200.0;
		        sY = -200.0;
		        wX = 500.0;
		        wY = wX;
		        
		        // *** 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 *** //

		                if( (x / 10) % 2 == 0 ){
		                  R = 0 + (x%256);
		                  G = 0 + (x%256);
		                  B = 0;
						}
						else{
		                  R = 255-(y%256);
		                  G = 255-(y%256);
		                  B = 0;
						}

		                // *** END YOUR PROGRAM *** //

		           g.setColor(new Color(R,G,B));
		           g.fillRect(x,y,x,y);

		            }
		        }
		    }
		}