Task16

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Task16
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Random random = new Random();
            int number;
            int sum = 0;
            int randomMin = 0;
            int randomMax = 101;
            int firstNumberMultiple = 3;
            int secondNumberMultiple = 5;

            number = random.Next(randomMin,randomMax);
            Console.WriteLine(number);

            for (int i = 0; i < number; i++)
            {
                if ((i % firstNumberMultiple) == 0 || (i % secondNumberMultiple) == 0)
                {
                    sum += i;
                }
            }
            Console.WriteLine("Конечная сумма равна - " + sum);
        }
    }
}