натуральные числа

using System;
namespace Lectures
{
    class Program
    {
        static void Main()
        {
            Random random = new Random();
            int minimumNumberToGenerate = 1;
            int maximumNumberToGenerate = 28;
            int generatedNumber = random.Next(minimumNumberToGenerate, maximumNumberToGenerate);
            int firstNumber = 100;
            int lastNumber = 999;
            int sumOfNaturalNumbers = 0;

            for (int i = 0; i < lastNumber; i += generatedNumber)
            {
                if (i >= firstNumber)
                {
                    sumOfNaturalNumbers++;
                }
            }

            Console.WriteLine($"Количество трехзначных натуральных чисел равно {sumOfNaturalNumbers}, сгенерированное число {generatedNumber}.");
        }
    }
}