Change Tiles

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            double n = double.Parse(Console.ReadLine());
            double Wplochka = double.Parse(Console.ReadLine());
            double Lplochka = double.Parse(Console.ReadLine());
            double Wpeika = double.Parse(Console.ReadLine());
            double Lpeika = double.Parse(Console.ReadLine());

            double areaPlaza = n * n;
            double areaPeika = Wpeika * Lpeika;
            double areaPlochka = Wplochka * Lplochka;
            double areaToCcover = areaPlaza - areaPeika;
            double NumPlochki = areaToCcover / areaPlochka;
            double timeToCover = NumPlochki * 0.2;

            Console.WriteLine(NumPlochki);
            Console.WriteLine(timeToCover);

        }
    }
}