// ********** FacadeDemo.java **********
class X { public void operationX() {} }

class Y { public void operationY() {} }

class Z { public void operationZ() {} }

class Facade {
  private X x = new X();
  private Y y = new Y();
  private Z z = new Z();
  public void operationFacade() {
    x.operationX();
    y.operationY();
    z.operationZ();
  }
}
public class FacadeDemo {
  private static final int MAX = 2000;
  public static void main(String args[]) {
    long t1 = System.currentTimeMillis();
    for (int i=0; i<MAX; i++) {
      Facade facade = new Facade();
      for (int j=0; j<10*MAX; j++) 
        facade.operationFacade();
    }
    long t2 = System.currentTimeMillis();
    System.out.print((t2-t1)+" ");
    System.out.flush();
  }
}