using System;
public class Program
{
public static void Main()
IA a = new A();
Static.Print();
Console.WriteLine("Hello World");
}
public interface IA{
void Print();
public interface IB{
public class A : IA, IB
public void Print()
public static class Static
public static int i = 10;
public static void Print(){
Console.WriteLine("hello from static {0}",i);
