Write a C# Sharp program to create new array from a given array of integers shifting all even numbers before all odd numbers

using System;
namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {               
           int[] item = test(new[] { 1, 2, 5, 3, 5, 4, 6, 9, 11 });            
           Console.Write("New array: ");         
           foreach(var i in item)
            {
               Console.Write(i.ToString()+" ");
            }     
          }               
        static int[] test(int[] numbers)
         {
          int index = 0;
            for (int i = 0; i < numbers.Length; i++)
            {
                if (numbers[i] % 2 == 0)
                {
                    int temp = numbers[index];
                    numbers[index] = numbers[i];
                    numbers[i] = temp;

                    index++;
                }
            }
            return numbers;
         }    
    } 
}