class Fat {
  String name = "No name";
  public Fat(String nm) { name = nm; }
}
class Steven extends Fat {
  String weight = "80kg";
  public Steven(String w){ weight = w; }
}
public class FatTest {
  public static void main(String[] args) {
    Steven s = new Steven("90kg");
    System.out.println(s.weight);
  }
}