using System;

public class Program

{

    public static void Main()

    {

        int version = 2;

        // v1 is set to as version, and after that version is increased by one

        int v1 = version++;

​

        Console.WriteLine(v1);

        Console.WriteLine(version);

        Console.WriteLine();

        int version2 = 1;

        // version2 is first increased, and after that the value is set to v2

        int v2 = ++version2;

        Console.WriteLine(v2);

        Console.WriteLine(version2);

    }

}