C# merge two list

C# merge two list

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<int> a = new List<int>();
        a.Add(1);
        a.Add(2);
        a.Add(5);
        a.Add(6);

        // Contains:
        // 1
        // 2
        // 5
        // 6

        int[] b = new int[3];
        b[0] = 7;
        b[1] = 6;
        b[2] = 7;

        a.AddRange(b);

        // Contains:
        // 1
        // 2
        // 5
        // 6
        // 7 [added]
        // 6 [added]
        // 7 [added]
        foreach (int i in a)
        {
            Console.WriteLine(i);
        }
    }
}

=== Output of the program ===

1
2
5
6
7
6
7