using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter length");

        int length = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Enter width");

        int width = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine($"area is {CalculateArea(length,width)}");

    }

    public static int CalculateArea(int length,int width){

        return length*width;

    }

}