class InnerSubclass {
  public static void main(String[] args) {
  } }

class C {
  int i;
  C(int i){this.i = i;}
  public String toString(){
      return "i is: " + i +"; " + super.toString();
    }
      
  protected class D extends C {
      int i;
      D(int i){ super(i+1); this.i = i;}
  }
}