using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        foreach (int value in Count(start: 4, count: 10))

        {

            Console.WriteLine(value);

        }

    }

    public static IEnumerable<int> Count(int start, int count)

    {

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

        {

            yield return start + i;

        }

    }

}