using System;

namespace GameOfNumbers
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int m = int.Parse(Console.ReadLine());
            int magicalNumbers = int.Parse(Console.ReadLine());
            int combinations = 0, firstNumber = 0, secondNumer = 0;
            for (firstNumber = n; firstNumber <= m; firstNumber++)
            {
                for (secondNumer = n; secondNumer <= m; secondNumer++)
                {
                    combinations++;

                    if (firstNumber + secondNumer == magicalNumbers && firstNumber > secondNumer)
                    {
                        Console.WriteLine($"Number found! {firstNumber} + {secondNumer} = {magicalNumbers}");
                        return;


                    }

                    if (firstNumber + secondNumer != magicalNumbers && (firstNumber == m && secondNumer == m))
                    {

                        Console.WriteLine($"{combinations} combinations - neither equals {magicalNumbers}");
                        break;
                    }
                }
            }
        }
    }
}