using System;

​

 class product{

     public int Number;

     public double Price;

     public double task (double price); 

     {

         double x;

         double y;

         x = price*1.7;

         y = x+price;

         return y;

     }

 }

​

public class MainClass {

 public static void Main (string[] args) {

   product product1 = new product ();

   Console.WriteLine ("please enter the price and the number of the product ");

   product1.Number=int.Parse(Console.ReadLine());

    product1.Price=int.Parse(Console.ReadLine());

   Console.WriteLine("the price with ma3m of this product number is {0}", product1.task(product1.Price));}

 }

​

​