Two interfaces with same method

Oops.cs

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
  public static void Main()
  {
        I1 ia = new C();
        ia.Method1();

        I2 ib = new C();
        ib.Method1();
  }

        public class C: I1, I2
        {
            void I1.Method1()
            {
              Console.WriteLine("Hello");
            }
            void I2.Method1()
            {
              Console.WriteLine("Bye");
            }
        }

        public interface I1
        {
          void Method1();
        }
        public interface I2
        {
          void Method1();
        }
}