using System;

using System.Collections.Generic;

using IrdValidator;

public class Program

{

    public static void Main()

    {

        foreach(var irdNumber in GetIrdNumber(10)){

            Console.WriteLine(irdNumber);

        }

    }

​

    private static IEnumerable<string> GetIrdNumber(int number = 1)

    {

        int lastNumber = 140000001;

​

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

        {

            while (!lastNumber.ToString("000000000").IsIrdNumberValid())

            {

                lastNumber++;

            }

​

            var latestNumber = lastNumber;

​

            lastNumber++;

​

            yield return latestNumber.ToString("000000000");

        }

    }

​

}