using System;

​

public class Program

{

    public void Merge(int[] arr1, int[] arr2)

    {

        int[] merged = new int[arr1.Length + arr2.Length];

        int index = 0;

        for (int i = 0; i < arr1.Length; i++)

        {

            merged[index] = arr1[i];

            index++;

        }

​

        for (int i = 0; i < arr2.Length; i++)

        {

            merged[index] = arr2[i];

            index++;

        }

​

        for (int i = 0; i < merged.Length; i++)

        {

            Console.WriteLine(merged[i]);

        }

    }

​

    public static void Main()

    {

        int[] arr1 = new int[]

        {

            1,

            2,

            3,

            4,

            5,

            6

        };

        int[] arr2 = new int[]

        {

            7,

            8,

            9,

            10,

            11,

            12

        };

        Program p = new Program();

        p.Merge(arr1, arr2);

    }

}