public class IntSingular: IntSequence{

  private int it;

  public IntSingular(int it){
    this.it = it;
  }

  public override int? Min{
    get {return it;}
  }

  public override int? Max{
    get {return it;}
  }

  public override IEnumerator GetEnumerator(){
    yield return it;
  }
}