using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("enter product cost");

        double pcost=Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("enter quantity");

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

        double bilamt=pcost*q;

        if(bilamt>5000)

        {

            Console.WriteLine("eligible for discount");

            int disc=20;

            double discamt=bilamt*disc/100;

            Console.WriteLine(discamt);

            double finalamt=bilamt-discamt;

            Console.WriteLine(finalamt);

        }

        else

        {

            Console.WriteLine(bilamt);

        }

    }

}