import java.awt.image.*;

class DarkFilter extends RGBImageFilter {
  public DarkFilter() {
    canFilterIndexColorModel = true;
  }

  public int filterRGB(int x, int y, int rgb) {
    return ((rgb & 0xff00ff00) 
	    | ((rgb & 0xff0000) >> 16)
	    | ((rgb & 0xff) << 16));
  }
}