Write a C# Sharp program to check two given arrays of integers of length 1 or more and return true if they have the same first element or they have the same last element

using System;
namespace exercises
{
   class Program
    {       
        static void Main(string[] args)
        {
            Console.WriteLine(test(new[] { 10, 20, 40, 50 }, new[] { 10, 20, 40, 50 }));
            Console.WriteLine(test(new[] { 10, 20, 40, 50 }, new[] { 10, 20, 40, 5 }));
            Console.WriteLine(test(new[] { 10, 20, 40, 50 }, new[] { 1, 20, 40, 5 }));
            Console.ReadLine();
        }
    public static bool test(int[] a1, int[] a2)
          {
           return a1[0] == a2[0] || a1[a1.Length - 1] == a2[a2.Length - 1];
          } 
   }
}