#include <iostream>
#include <cmath>
#include <vector>
#include <string>
#include <sstream>

using namespace std;

class Point {
    private:
        double x;
        double y;
        double z;

    public:
        Point() {
            this->x = 0;
            this->y = 0;
            this->z = 0;
        }

        Point(double X, double Y) {
            this->x = X;
            this->y = Y;
            this->z = 0;
        }

        Point(double X, double Y, double Z) {
            this->x = X;
            this->y = Y;
            this->z = Z;
        }

        double getX() {
            return this->x;
        }

        double getY() {
            return this->y;
        }

        double getZ() {
            return this->z;
        }

        double getRadius() {
            return sqrt(pow(this->x, 2) + pow(this->y, 2) + pow(this->z, 2));
        }

        double getPhi() {
            double arg = this->y / this->x;
            if (this->x >= 0) {
                return atan(arg);
            }
            return atan(arg) + M_PI;
        }

        double getTheta() {
            if (this->z == 0) return 0;

            double arg = sqrt(pow(this->x, 2) + pow(this->y, 2)) / this->z;

            return atan(arg);
        }

};

int main () {
    double X, Y, Z;

    string line;
    while (getline(cin, line)) {
        vector<double> numbers;
        stringstream ss(line);

        for (double i; ss >> i; ) {
            numbers.push_back(i);
            if (ss.peek() == ';') {
                ss.ignore();
            }

            if (ss.peek() == ' ') {
                double X = numbers[0], Y = numbers[1], Z = numbers[2];
                if (X && Y && Z) {
                    Point p(X, Y, Z);

                    cout << "r=" << p.getRadius() << "; phi=" << p.getPhi() << "; theta=" << p.getTheta() << endl;
                }
                else if (X && Y) {
                    Point p(X, Y);
                    cout << "r=" << p.getRadius() << "; phi=" << p.getPhi() << endl;
                }

                numbers.clear();
            }
        }

    }
    return 0;
}