package zahlen;
public class S implements N {
  N n;
		
  public S(N n) {
    super();
    this.n = n;
  }

  @Override
  public N add(N that) {
    return new S(n.add(that));
  }

  @Override
  public N mult(N that) {
    return n.mult(that).add(that);
  }

  @Override
  public int value() {
    return 1+n.value();
  }
}