#define _USE_MATH_DEFINES
#include <cmath>
#include <iostream>

using namespace std;

int main()
{
	double x=0;
	double a=0;
	double y=sin(x*x*x+2*a)+(cos(x) + exp(x))/sqrt(abs(1-atan(a-0.5)));
	cout<<y;
	return 0;
}