static void solve() {
String[] s = in.next().split(",");
Point p =
reflect(
new Line(
Double.parseDouble(s[0]),
Double.parseDouble(s[1]),
Double.parseDouble(s[2]),
Double.parseDouble(s[3])),
new Point(Double.parseDouble(s[4]), Double.parseDouble(s[5])));
out.println(p.getX() + " " + p.getY());
}
public String toString() {
return "[(" + p1.getX() + "," + p1.getY() + "),(" + p2.getX() + "," + p2.getY() + ")]";
}
public double getY2() {
return p2.getY();
}
public double getY1() {
return p1.getY();
}
public Vector plus(Point p) {
return new Vector(this.x + p.getX(), this.y + p.getY());
}
public Vector(Point target, Point source) {
this.x = target.getX() - source.getX();
this.y = target.getY() - source.getY();
}