using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("This program will calculate the area of a rectangle");

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

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

        double ans = area(length, width);

        Console.WriteLine(ans);

    }

​

    static private double area(double a, double b)

    {

        return a * b;

    }

}