using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(prob(1.797e308, 1.797e-308, 1));

    }

    private static double prob(double Age, double Scale, double Shaping)

    {

        var prev = prevYear(Age, Scale, Shaping);

        var curr = currYear(Age, Scale, Shaping);

        return Math.Exp(prev-curr);

    }

    private static double prevYear(double Age, double Scale, double Shaping)

    {

        return Math.Pow((Age-1)/Scale, Shaping);

    }

    private static double currYear(double Age, double Scale, double Shaping)

    {

        return Math.Pow((Age)/Scale, Shaping);

    }

}