Functional Programming - 2. Sum Numbers

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;


namespace CSharpAdvanced
{
    class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine();

            Func<string, int> change = x => int.Parse(x);

            var numbers = input.Split(new[] { ", " }, StringSplitOptions.RemoveEmptyEntries)
              .Select(change)
              .ToArray();

            Console.WriteLine(numbers.Length);
            Console.WriteLine(numbers.Sum());
        }
    }
}