using System;

public class Program

{

    public static void Main()

    {

        double MyNumber = 0;

        MyNumber = Double.Parse(PromptUser());

        MyNumber = double.Parse(GetNumber(MyNumber));

        Console.WriteLine(MyNumber);

    }

    public static string PromptUser()

    {

        string UserInput="";

        UserInput = Console.ReadLine();

        return UserInput;

    }

    public static double GetNumber(int num)

    {

        double total;

        total = num * 1.0725;

        return total;

    }

}