using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("How many even numbers you want ?:");

        int n=int.Parse(Console.ReadLine());

        int num=2;

        while(n!=0)

        {

            if(num%2==0)

            {

            Console.WriteLine(num);

                num+=2;

            n--;

            }

        }

    }

}

​