using System;

using System.Linq;

public class Program

{

​

    public static void Main()

    {

        string[] v1 = new string[2]{"Olá", "alunos"};

        string[] v2 = new string[2] { "do", "IFMS!" };

​

        var v3 = v1.Union(v2).ToArray<string>();

​

        foreach(string element in v3){

            Console.Write(element+ " ");

        }

    }

}