#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define RREP(i,s,e) for (i = e-1; i >= s; i--)
#define rrep(i,n) RREP(i,0,n)
#define REP(i,s,e) for (i = s; i < e; i++)
#define rep(i,n) REP(i,0,n)
#define INF 1e8

typedef long long ll;

int main() {
    int x1, y1, x2, y2, x3, y3;
    int dx, dy;
    cin >> x1 >> y1 >> x2 >> y2 >> x3 >> y3;
    dx = x1 - x2;
    dy = y1 - y2;
    if (x1 + dy == x3 && y1 - dx == y3)
        cout << x2 + dy << " " << y2 - dx << endl;
    else if (x1 - dy == x3 && y1 + dx == y3)
        cout << x2 - dy << " " << y2 + dx << endl;
    else if (x2 + dy == x3 && y2 - dx == y3)
        cout << x1 + dy << " " << y1 - dx << endl;
    else if (x2 - dy == x3 && y2 + dx == y3)
        cout << x1 - dy << " " << y1 + dx << endl;
    else {
        dx = x1 - x3;
        dy = y1 - y3;
        if (x1 + dy == x2 && y1 - dx == y2)
            cout << x3 + dy << " " << y3 - dx << endl;
        else if (x1 - dy == x2 && y1 + dx == y2)
            cout << x3 - dy << " " << y3 + dx << endl;
        else if (x3 + dy == x2 && y3 - dx == y2)
            cout << x1 + dy << " " << y1 - dx << endl;
        else if (x3 - dy == x2 && y3 + dx == y2)
            cout << x1 - dy << " " << y1 + dx << endl;
        else
            cout << -1 << endl;
    }
    return 0;
}