using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        foreach(var v in SumValues(4, 10))

        {

            Console.WriteLine(v);

        }

    }

    public static IEnumerable<int> SumValues(int val, int times)

    {

        for(int i = 0; i < times; i++)

        {

            yield return val * i;

        }       

    }

}