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

namespace Calculator
{
    class Program
    {
        static void Main(string[] args)
        {
            int Total = Operations.Add(1, 2);
            if (Total != 3)
            {
                Console.WriteLine("Oops, 1 and 2 does not equal 3");
            }
            else
                Console.WriteLine("1 plus 2 equals 3!");
        }
    }

    class Operations
    {
        public static int Add(int Num1, int Num2)
        {
            return Num1 + Num2;
        }
    }
}