using System;

public class Program

{

    public static void Main()

    {

        // declare variables

        double firstNumber, secondNumber;

        string userName; Console.WriteLine("Enter your name:");

        // capture user input

        userName = Console.ReadLine();

        Console.WriteLine("Welcome " + userName + "!");

        Console.WriteLine("Now give me a number:");

        firstNumber = double.Parse(Console.ReadLine());

        Console.WriteLine("Now give me another number:");

        secondNumber = double.Parse(Console.ReadLine());

        Console.WriteLine("The sume of {" + firstNumber + "} and {" + secondNumber + "} is " + "{" + firstNumber + secondNumber + "}.");

        Console.WriteLine("The result of subtracting {"+secondNumber+"} from " + "{"+firstNumber+ "} is {" + (firstNumber - secondNumber) + "}."); 

        Console.WriteLine("The product of {"+firstNumber+"} and {"+secondNumber+ "} " + "is {"+(firstNumber * secondNumber)+"}.");

        Console.WriteLine("The result of dividing {" +firstNumber +"} by " + "{"+ secondNumber + "} is {"+(firstNumber / secondNumber)+"}.");

    }

}