using System;

public class Program

{

    public static void Main()

    {

        Stapler myStapler = new Stapler();

        Console.WriteLine("Staple count is " + myStapler.count);

        int numberOfStaplesToHand = 5;

        myStapler.fillStapler(numberOfStaplesToHand);

        Console.WriteLine("Staple count is " + myStapler.count);

    }

}

​

public class Stapler {

    public int count { get; private set; }

    public Stapler() {

        this.count = 0;

    }

    public void fillStapler(int stapleCount) { 

        this.count = stapleCount;

    }

}