#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  vector<pair<int, int>> v(3);
  rep(i, 3) cin >> v[i].first >> v[i].second;
  vector<int> p(3);
  iota(p.begin(), p.end(), 0);
  do {
    int dx = v[p[1]].first - v[p[0]].first;
    int dy = v[p[1]].second - v[p[0]].second;
    Debug(p, dx, dy);
    if (v[p[2]].first - v[p[1]].first == -dy && v[p[2]].second - v[p[1]].second == dx) {
      cout << v[p[2]].first - dx << ' ' << v[p[2]].second - dy << endl;
      return 0;
    }
  } while (next_permutation(p.begin(), p.end()));
  cout << -1 << endl;
  return 0;
}