class Program
    {
        static void Main(string[] args)
        {
            int num1, num2, sum;
            Console.WriteLine("Calculate the sum of two numbers:");
            Console.Write("Input number1:");
            num1 = Convert.ToInt32(Console.ReadLine());
            Console.Write("Input number2:");
            num2 = Convert.ToInt32(Console.ReadLine());
            sum = num1 + num2;
            Console.Write("Result:"+sum);

            Console.ReadKey();
        }
    }