using System;

​

public class C

{

    private int f;

    private int f_read_count;

    public int Field

    {

        get { ++f_read_count; return f; }

        set { f = value; }

    }

    public int ReadCount { get { return f_read_count; } }

}

​

public class Program

{

    public static void Main()

    {

        var c = new C();

        int f0 = c.Field;

        c.Field = 20;

        int f1 = c.Field;

        Console.WriteLine("f0 = {0}", f0);

        Console.WriteLine("f1 = {0}", f1);

        Console.WriteLine("c.Field = {0}", c.Field);

        Console.WriteLine("c.ReadCount = {0}", c.ReadCount);

    }

}