using System;

​

public class Program

{

    public static void Main()

    {

        int[] arr = new int[10];

        for (int M = 0; M < arr.Length; M++)

        {

            arr[M] = M * 2;

            Console.WriteLine(arr[M] + " ");

            Console.Write(arr[M] + " ");

        }

    }

}