using System;

public class Program

{

    public static void Main()

    {

        var example = new ExampleClass();

        Console.WriteLine(example.beep);

        Console.WriteLine(example.boop);

        example.Range.SetRange(10,20);

        Console.WriteLine(example.beep);

        Console.WriteLine(example.boop);

    }

}

​

public class ExampleClass

{

    public int beep = 0;

    public int boop = 0;

    public ExampleClassRangeGroup Range { get; set; }

    public ExampleClass()

    {

        Range = new ExampleClassRangeGroup{ Parent = this };

    }

    public class ExampleClassRangeGroup

    {

        public ExampleClass Parent { get; set; }

        public void SetRange(int start, int end)

        {

            Parent.beep = start;

            Parent.boop = end;

        }       

        public void RemoveRange()

        {

            Parent.beep = 0;

            Parent.boop = 0;

        }

    }

}