using System;

public class Program

{

    public static void Main()

    {

        //Boxing unboxing

        //The process of Converting a Value Type (char, int etc.) to a Reference Type(object) is called Boxing.

        // assigned int value 

        // 2020 to num 

        int num = 2020; 

        // boxing 

        object obj = num; 

        // value of num to be change 

        num = 100; 

        System.Console.WriteLine 

        ("Value - type value of num is : {0}", num); 

        System.Console.WriteLine 

        ("Object - type value of obj is : {0}", obj); 

    }

}