using System;

public class Program

{

    public static void Main()

    {

            Console.WriteLine("Displaying Perfect numbers from 1 to 1000\n");

​

            for (int number = 1; number <= 1000; number++)

            { 

                int count = 1, sum = 0;

                while (count <= number * .5)

                {

                    if (number % count == 0)

                        sum = sum + count; // also can use sum += count

                    count = count + 1; // also can use count +=1 or ++count              

                }

​

            if (sum == number)

                Console.WriteLine(number + " is perfect.");

            }

            Console.ReadLine();

    }

}