Using System; namespace ConsoleApp12

using System;
namespace ConsoleApp12

{

class Program

{

static void Main(string[] args)

{

double Z,a,b,c,x;

x = Convert.ToDouble(Console.ReadLine());

a = Convert.ToDouble(Console.ReadLine());

b = Convert.ToDouble(Console.ReadLine());

c = Convert.ToDouble(Console.ReadLine());

Z = ((2 * x * x * x + Math.Pow((a + x * x), 1.0 / 3)) / (a * a + b * c)) + (Math.Log10(b) + Math.Log(c * c)) / Math.Pow((Math.Cos(a * x * x * x)), 2);

Console.WriteLine(Z);

}

}

}