using System;
using System.Collections.Generic;
public interface I1
{
void Test ();
}
public interface I2
public class C1 : I1,I2
void I1.Test()
Console.WriteLine("I1.Test");
void I2.Test()
Console.WriteLine("I2.Test");
public static void Main()
I1 obj1 = new C1();
obj1.Test();
I2 obj2 = new C1();
obj2.Test();