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;
        List<string> products = new List<string>();
        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 (!products.Contains(numbers[j].ToString() + numbers[i].ToString()))
                    {
                        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;
                            products.Add(numbers[i].ToString() + numbers[j].ToString());
                        }
                    }
                }
            }
        }

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