C# - Game of Numbers / Hardcore

using System;
class Program
{
    static void Main()
    {
        int firstNum = int.Parse(Console.ReadLine());
        int secondNum = int.Parse(Console.ReadLine());
        int magicNum = int.Parse(Console.ReadLine());

        int counter = 0;
        int sum = 0;
        int secondCounter = 0;

        for (int i = secondNum; i >= firstNum; i--)
        {
            for (int j = secondNum; j >= firstNum; j--)
            {
                counter++;
                sum = i + j;
                if (sum == magicNum)
                {

                    Console.WriteLine("Number found! {0} + {1} = {2}", i, j, magicNum);
                    secondCounter++;
                    return;
                }
            }
        }
        if (secondCounter == 0)
        {
            Console.WriteLine("{0} combinations - neither equals {1}", counter, magicNum);
        }
    }
}