import java.util.*;
public class Point {
  public Point(double x,
               double y) {
    this.x = x;
    this.y = y;
  }

  public Point clone() {
    return new Point(x, y);
  }

  public double getX() {
    return x;
  }

  public double getY() {
    return y;
  }

  public double getAngle() {
    double a = Math.atan(y / x);

    return a;
  }

  public double getRadius() {
    return Math.sqrt(x * x + y * y);
  }

  public static Point mkPointFromAngleRadius(double a, double r) {
    return new Point(r * Math.cos(a), r * Math.sin(a));
  }

  public void subtractBy(Point p) {
    x -= p.x;
    y -= p.y;
  }

  public void multiplyBy(double d) {
    x *= d;
    y *= d;
  }

  public void rotateCCBy(double ang) {
    double a   = getAngle();
    double r   = getRadius();
    Point  tmp =  mkPointFromAngleRadius(a + ang, r);

    x = tmp.x;
    y = tmp.y;
  }

  public String toString() {
    return "" + x + " " + y;
  }

  public static Point read(Scanner sc) {
    if (!sc.hasNextDouble()) {
      return null;
    }
    double x = sc.nextDouble();

    if (!sc.hasNextDouble()) {
      return null;
    }
    double y = sc.nextDouble();
    return new Point(x, y);
  }

  private double x, y;

  public static void main(String[] args) {
    Point A = new Point(1, 1);

    A.rotateCCBy(Math.PI / 4);
    System.out.println(A);
  }
}