using System;

public class Program

{

    public static void Main()

    {

        static void Proverka(double purva, double vtora, double num)

            {

                while (purva > num || num > vtora)

                {

                    Console.WriteLine("invalid num");

                    num = double.Parse(Console.ReadLine());

                }

            }

​

            double x = double.Parse(Console.ReadLine());

            Proverka(1.0, 10000.0, x);

            double p = double.Parse(Console.ReadLine());

            Proverka(1.0, 25000.0, p);

            double t = double.Parse(Console.ReadLine());

            Proverka(1.00, 25000.0, t);

            double e = double.Parse(Console.ReadLine());

            Proverka(1.00, 10000.0, e);

            double n = double.Parse(Console.ReadLine());

            Proverka(0.00, 10000.0, n);

​

            var won = x * t - x * p;

            var ethP = 0.075 * t;

            var neoP = 0.4 * ethP;

            var boughtE = e * ethP;

            var boughtN = neoP * n;

            if (won > boughtE + boughtN)

            {

                Console.WriteLine($"Stefcho bought {Math.Round(boughtE/ethP, 4)}eth at a price of {Math.Round(ethP,4)} and {Math.Round(boughtN/neoP, 4)}neo at a price of {Math.Round(neoP,4)}");

            }

            else Console.WriteLine($"Not enough money, {(boughtN + boughtE) - won} more needed");

    }

}