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 firstThreeDigitNumber = 100;
            int lastThreeDigitNumber = 999;
            int sumOfThreeDigitNaturalNumbers =0;

            for (int i = 0; i < lastThreeDigitNumber; i+= generatedNumber)
            {
                if(i>= firstThreeDigitNumber || i <= lastThreeDigitNumber)
                {
                    sumOfThreeDigitNaturalNumbers++;
                }
            }
            Console.WriteLine($"Количество трехзначных натуральных чисел равно {sumOfThreeDigitNaturalNumbers}, сгенерированное число {generatedNumber}".);
        }
    }
}