class Translation 
 {
  private double x;
  private double y;
  private double z;
  public Translation(double a, double b, double c)
   {
    x=a;
    y=b;
    z=c;
   }
  public void transform(XYZ k)
   {
    if (k == null) return;
    k.x += x;
    k.y += y;
    k.z += z;
   }
  public void transl(XYZ k)
   {
    if (k == null) return;
    k.x += x;
    k.y += y;
    k.z += z;
   }
 }