#include <bits/stdc++.h>
using namespace std;
using lint = long long;
template<class T = int> using V = vector<T>;
template<class T = int> using VV = V< V<T> >;

using R = long double;
constexpr R pi = acos((R)-1), eps = 1e-10;

int sgn(R a) { return (a > eps) - (a < -eps); }
int sgn(R a, R b) { return sgn(a - b); }
using P = complex<R>;
istream& operator>>(istream& i, P& p) { R x, y; i >> x >> y; p = P(x, y); return i; }
bool cmp(P p, P q) { return 2 * sgn(real(p), real(q)) + sgn(imag(p), imag(q)) < 0; }
bool eql(P p, P q) { return !cmp(p, q) and !cmp(q, p); }
R dot(P p, P q) { return real(conj(p) * q); }
R crs(P p, P q) { return imag(conj(p) * q); }
int ccw(P p, P q) {
  int s = sgn(crs(p, q));
  if (s) return s;
  if (dot(p, q) < 0) return -2;
  if (dot(p, q - p) > 0) return 2;
  return 0;
}
int ccw(P o, P p, P q) { return ccw(p - o, q - o); }
struct L {
  P s, t;
  P vec() const { return t - s; }
  R abs() const { return std::abs(vec()); }
  R arg() const { return std::arg(vec()); }
};
int ccw(L l, P p) { return ccw(l.s, l.t, p); }

// BEGIN CUT HERE
P proj(P p, L l) {
  P e = l.vec() / l.abs();
  return l.s + dot(p - l.s, e) * e;
}
P refl(P p, L l) { return (R)2 * proj(p, l) - p; }
// END CUT HERE

V<string> split(const string& s, char c) {
  V<string> res;
  stringstream ss(s);
  string t;
  while (getline(ss, t, c)) res.push_back(t);
  return res;
}

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);
  string s;
  while (getline(cin, s)) {
    auto v = split(s, ',');
    P p = refl({stold(v[4]), stold(v[5])}, {{stold(v[0]), stold(v[1])}, {stold(v[2]), stold(v[3])}});
    cout << fixed << setprecision(15) << real(p) << ' ' << imag(p) << '\n';
  }
}
