using System;

public class Program

{

    public static void Main()

    {

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

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

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

        double result = (n * n + (1 / (m * p)) + 1337) /(n - (128.523123123 * p)) + Math.Sin((int)m % 180);

        Console.WriteLine("{0:0.000000}", result);

    }

}