What will be the output of the following C# code?

What will be the output of the following C# code?

interface IA { void Show(); }
interface IB { void Show(); }
class Demo : IA, IB {
  void IA.Show() { Console.WriteLine("IA Show"); }
  void IB.Show() { Console.WriteLine("IB Show"); }
}
class Program {
  static void Main() {
    Demo d = new Demo();
    ((IA)d).Show();
    ((IB)d).Show();
  }
}