using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.Threading;
namespace MultiStream
{
    class Program
    {
        static double S1 = 0.0, S2 = 0.0;
        static int L, H;
        static void Count()
        {
            double P = 1.0;
            for (int i = 2; i <= L; i = i + 2)
            {
                for (int j = 1; j <= H; j++)
                {
                    P = (i / 25.0) * (i / 25.0);
                }

                S1 += P * 4;
                Thread.Sleep(0);
            }
            S1 += S2;
            Console.WriteLine("Сумма произведений строк: " + S1);
        }
        static void Main(string[] args)
        {
            Console.Write("Line: ");
            L = Convert.ToInt32(Console.ReadLine());
            Console.Write("Hight: ");
            H = Convert.ToInt32(Console.ReadLine());
            var sw = Stopwatch.StartNew();
            Thread myThread = new Thread(Count);
            myThread.Start();
            double S = 0.0;
            double P = 1.0;
            for (int i = 1; i <= L; i = i + 2)
            {
                for (int j = 1; j <= H; j++)
                {
                    P = (i / 25.0) * (i / 25.0); ;
                }
                S += P * 4;
                P = 1.0;
                Thread.Sleep(0);
            }

            sw.Stop();
            Console.WriteLine("Время выполнения: " + sw.Elapsed.TotalMilliseconds + "[Mc]");
            Console.ReadKey(true);
        }
    }
}