Write a C# Sharp program to check if a given string starts with 'C#' or not

using System;
namespace exercises
{
class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(test("C# Sharp"));
            Console.WriteLine(test("C#"));
            Console.WriteLine(test("C++"));
            Console.ReadLine();
        }
   public static bool test(string str)
        {
            return (str.Length < 3 && str.Equals("C#")) || (str.StartsWith("C#") && str[2] == ' ');
        }
    }
}