class OuterClass {
  int outer;
  InnerClass innerObj;
  
  public OuterClass(int o) {
    outer = o;
    innerObj = new InnerClass(2*o);
  }  
  
  public String toString() {
    return "outer (int): "+ outer + ", innerObj: "+innerObj;
  }
  
  class InnerClass {
    private int innerPriv;    
    public InnerClass(int p) { innerPriv = p; }
    public final void setInnerPriv(int p) { innerPriv = p; }
    public String toString() {
      return "innerPriv: "+innerPriv; 
    }
  }
  
  class InnerInnerClass extends InnerClass {
    public InnerInnerClass(int p) { super(2*p); }
  }
  
  class OuterInnerClass extends OuterClass {
    public OuterInnerClass(int o) {
      super(o);
    }
  }
  
  public static void main(String [] args) {
    OuterClass outer = new OuterClass(2);
    OuterClass.InnerClass inner = outer.new InnerClass(10);
    OuterClass.InnerInnerClass innerInner = outer.new InnerInnerClass(10);
    
    System.out.println(outer);
    System.out.println(inner);
    System.out.println(innerInner);
  }
}

class AnotherOuterClass extends OuterClass {

  public AnotherOuterClass(int p) {
    super(p);
  }
  
  class AnotherInnerClass extends OuterClass.InnerClass {
    public AnotherInnerClass(int p) {
      super(p);
    }
  }
}