using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}

using System;

​

​

class WearInvoice

{

    private string id;

    private int previousred;

    private int curentread;

    private double metersize;

​

    public string ID

    {

        get

        {

            return id;

        }

        set

        {

            id = value;

        }

    }

    public int Perviousred

    {

        get

        {

            return previousred;

        }

        set

        {

            previousred = value;

        }

    }

    public int Curentred

    {

        get

        {

            return curentread;

        }

        set

        {

            curentread = value;

        }

    }

    public double Metersize

    {

        get

        {

            return metersize;

        }

        set

        {

            metersize = value;

        }

    }

    public double consumptioncost()

    {

        return ((Curentred - Perviousred) * 0.3 * Metersize);

    }

    public void print()

    {

        Console.WriteLine("id:" + ID);

        Console.WriteLine("PREVIUOS:" + Perviousred);

        Console.WriteLine("CURENTREAD:" + Curentred);

        Console.WriteLine("METERSIZE:" + Metersize);

        Console.WriteLine(consumptioncost());

    }

​

​

class Program

{

    static void Main(string[] args)

    {

        WearInvoice obj = new WearInvoice(); 

        obj.ID = "12222";

        obj.Curentred = 44;

        obj.Perviousred = 666;

        obj.Metersize = 344.5;

        obj.print();

​