Write a C# Sharp program to create a new array taking the first and last elements of a given array of integers and length 1 or more

using System;
namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {         
           int[] item = test(new[] { 10, 20, -30, -40, 30 }); 
          // int[] item = test(new[] { 10 }); 
           
           Console.Write("New array: ");
         
           foreach(var i in item)
            {
               Console.Write(i.ToString()+" ");
            }
        }        
       public static int[]  test(int[] nums)
          {
              return new int[] { nums[0], nums[nums.Length - 1] };
          } 
   }
}