using System;

public class Test
{
    class A
    {
        private int result = 1;

        public void Debug()
        {
            Console.WriteLine(this.result);
        }
    }

    class B : A
    {
        public int result;
    }
    
	public static void Main()
	{
		var a = new A();
		a.Debug();
		var b = new B();
		b.result = 0;
	    Console.WriteLine(b.result);
	}
}