using System;

public class Program

{

    public static void Main()

    {

        // This is how to convert strings to numbers, in this case integers (full number)

        //int num = Convert.ToInt32("42");

        Console.Write("Enter a number: ");

        double num1 = Convert.ToDouble(Console.ReadLine());

        Console.Write("Enter another number: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Console.Write( num1 + num2 );

        Console.ReadLine();

    }

}