#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int d[3];
	iota(d, d + 3, 0);
	int x[3], y[3];
	for(int i = 0; i < 3; i++) {
		cin >> x[i] >> y[i];
	}
	do {
		int dx = x[d[1]] - x[d[0]];
		int dy = y[d[1]] - y[d[0]];
		if(y[d[2]] + dx == y[d[1]] && x[d[2]] - dy == x[d[1]]) {
			cout << x[d[2]] - dx << " " << y[d[2]] - dy << endl;
			return 0;
		}
	} while(next_permutation(d, d + 3));
	cout << -1 << endl;
	return 0;	
}