Unnamed

istream& operator>>(istream &s, Point &p) {
int x, y;
char lpar, comma, rpar;
if (s >> lpar) {
if ((s >> x >> comma >> y >> rpar) &&
(lpar == '(' && comma == ',' && rpar == ')'))
p = Point(x, y);
else
s.setstate(ios::badbit); // read failed
}
return s;
}
Do not, I repeat, DO NOT print anything when reading!
And try to read from s, not cin . . .