#include <iostream>
#include <cmath>
using namespace std;
int main()
{
  float a,b,c,x;
  cout << "Please input a, b, c, x" << endl;
  cin >> a >> b >> c >> x;
  cout << "Y= " << a*pow(x, 4)+(pow(b, 3)/sqrt(x))+(cos(c)*cos(c)) << endl;
  system("pause");
}