using System;

public class C
{
	
	public C(){}
	~C(){}
	public void getData(){}
	
}

public class B
{
	private bool _flag;
	private C _c;
	public B(C c)
	{
		_flag=true;
		_c=c;
		(new System.Threading.Thread(delegate() {
                run();
            									})).Start();
    }
	~B(){_flag=false;}
	public void run(){ while (_flag){_c.getData();};}
}

public class A: C
{
	B _b;
	public A(){_b=new B(this); }
	~A(){}
}

public class Test
{
	public static void Main()
	{
		{
			A a=new A();
		}
		Console.Write("hello");
		// your code goes here
	}
}