using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int num1 = 5;
            int num2 = 4;
            int result;

            result = AddNumbers(2, 5);
            Console.WriteLine("Result is {0}", result);

            result = AddNumbers(num1, num2);
            Console.WriteLine("Result is {0}", result);

            Console.ReadKey();  // Pause
        }

        static int AddNumbers(int number1, int number2)
        {
            int result;
            result = number1 + number2;
            return result;
        }
    }
}