using System;

​

namespace MyNamespace

{

    public class MyProgram

    {

        public static void Main()

        {

            int sum = 0;

            int lower_limit = 1;

            int upper_limit = 1000;

            for (int i = lower_limit; i <= upper_limit; i++)

            {

                if (i % 5 == 0)

                {

                    Console.WriteLine("by 5 " + i);

                    sum = sum + i;

                    Console.WriteLine("Sum is" + sum);

​

                }

            }

​

            Console.WriteLine("SUM is " + sum);

        }

    }

}