using System;

​

public class Newton2ndLawCalculator

{

    double m;

    double a;

    public Newton2ndLawCalculator(double m, double a)

    {

        this.m = m;

        this.a = a;

    }

​

    public double Compute()

    {

        return m * a;

    }

}

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Enter the mass and acceleration");

            Newton2ndLawCalculator cal = new Newton2ndLawCalculator(Convert.ToDouble(Console.ReadLine()),(Convert.ToDouble(Console.ReadLine())));

            Console.WriteLine("F = " + cal.Compute());

        }

    }

​