var sw2 = Stopwatch.StartNew();
            long anotherSum = 0;
            var _locker2 = new object();
            Parallel.For<long>(1, cnt + 1,
                () => 0,
                (i, state, local) => local + i,
                partialSum =>
                {
                    lock (_locker2)
                    {
                        anotherSum += partialSum;
                    }
                });
            Console.WriteLine("Generic For " +anotherSum);
            Console.WriteLine("Time is " + sw2.ElapsedMilliseconds);