public class Main
{
  public static class B
  {
    public void F() {
      F(0d);
    }
 
    public void F(double d) {
      F();
    }
  }
 
  public static class C extends B
  {
    public void F() {
      System.out.println("F()");
    }
  }
 
  public static class D extends B
  {
    public void F(double d) {
      System.out.println("F(double)");
    }
  }
 
  // arguments are passed using the text field below this editor
  public static void main(String[] args)
  {
    C c = new C();
    c.F();
    c.F(1d);
 
    D d = new D();
    d.F();
    d.F(1d);
  }
}
 

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