#include <iostream>
#include <cmath>
#include <iomanip>

using namespace std;

int main() {
    double x = 1, y = 1, z;
    const double e = 2.71828;
    cout << "x, y =" << endl;
    cin >> x >> y;
    if (x < 0) {
        y = x * x;
    }
    else if (x >= 0) {
        y = pow(pow(e, cos(x)), 1 / 5.0);
    }

    if (y < 0.2) {
        z = 0.5 * x - pow(y, 3) + 1;
    }
    else if (x > 0.2) {
        z = pow(y, 2) / (x - 0.4);
    }
    else {
        z = (1 - pow(y, 2)) / pow(3, x);
    }

    cout << "y = " << y << endl;
    cout << "z = " << z << endl;
    return 0;
}