using System;
public class Program
{
public static void Main()
int[] elements = new int[4]{1, 2, 3, 4};
Console.WriteLine(JoinArray(elements));
}
static string JoinArray(int[] numbers)
string resposta = "";
for (int i = 0; i < numbers.Length; i++)
resposta = resposta + numbers[i];
return resposta;