using System;
public class Program
{
public static void Main()
const int MAX = 1000;
int number;
int sum;
int div;
for (number = 1; number <= MAX; number++)
//Console.WriteLine("Number {0}",number);
sum = 0;
for (div = 1; div < number; div ++)
//Console.WriteLine("Div {0}", div);
//Console.WriteLine("Mod {1} into {2} = {0}", number % div, div, number);
if ((number % div) == 0)
sum += div;
//Console.WriteLine("Sum {0}", sum);
}
if (sum == number)
Console.WriteLine("{0} is a perfect number", number);