#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <iomanip>
using namespace std;
#define INF 1e9
#define PI acos(-1)
typedef long long ll;

int main() {
	vector<int> index(3);
	index[0] = 0; index[1] = 1; index[2] = 2;
	vector<int> x(3), y(3);
	for (int i = 0; i < 3; i++)cin >> x[i] >> y[i];

	do {
		int dy = y[index[1]] - y[index[0]];
		int dx = x[index[1]] - x[index[0]];
		if (y[index[2]] == y[index[1]] + dx && x[index[2]] == x[index[1]] - dy) {
			int yans = y[index[2]] - dy;
			int xans = x[index[2]] - dx;
			cout << xans << " " << yans << endl;
			return 0;
		}
	} while (next_permutation(index.begin(), index.end()));
	cout << -1 << endl;
	return 0;
}