Pythagorean Numbers

using System;
using System.Collections.Generic;

class PytagoreanNumbers
{
    static void Main()
    {
        short n = short.Parse(Console.ReadLine());
        int[] numbers = new int[n];
        for (int i = 0; i < n; i++)
        {
            numbers[i] = int.Parse(Console.ReadLine());
        }
        bool hasNumbers = false;

        Array.Sort(numbers);

        for (int i = 0; i < n; i++)
        {
            for (int j = i; j < n; j++)
            {
                for (int k = 0; k < n; k++)
                {

                    if (numbers[i] * numbers[i] + numbers[j] * numbers[j] == numbers[k] * numbers[k])
                    {
                        PrintPow(numbers[i]);
                        Console.Write(" + ");
                        PrintPow(numbers[j]);
                        Console.Write(" = ");
                        PrintPow(numbers[k]);
                        Console.WriteLine();
                        hasNumbers = true;
                    }

                }
            }
        }

        if (!hasNumbers)
        {
            Console.WriteLine("No");
        }
    }
    static void PrintPow(int num)
    {
        Console.Write(num + "*" + num);
    }
}