using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Write a bunch of numbers separated by ','.");

        List<int> numbers = ReadUserInput();

        WriteNumbers(numbers);

        Console.WriteLine();

        WriteSumOfNumbers(numbers);

    }

​

    public static List<int> ReadUserInput()

    {

        string[] userInput;

        var NumberList = new List<int>();

        try

        {

            userInput = Console.ReadLine().Split(',');

            //var NumberList = new List<int>();

            foreach (var input in userInput)

            {

                NumberList.Add(int.Parse(input));

            }

​

            //return NumberList; //.ToArray();

        }

        catch (Exception ex)

        {

            Console.WriteLine("Sorry", ex);

        }

        return NumberList; //.ToArray();

    }

​

    public static void WriteNumbers(List<int> numbers)

    {

        foreach (int num in numbers)

        {

            Console.Write("{0}" + " ", num);

        }

    }

​

    public static void WriteSumOfNumbers(List<int> numbers)

    {

        int sum = 0;

        for (int i = 0; i < numbers.Count; i++)

            sum = sum + numbers[i];

        Console.WriteLine("Sum: {0}", sum);

    }

}