#define _CRT_SECURE_NO_WARNINGS
#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <set>
#include <map>
#include <queue>
#include <iostream>
#include <sstream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstring>
#include <cctype>
#include <cassert>
#include <limits>
#include <functional>
#include <bitset>
#define rep(i,n) for(int (i)=0;(i)<(int)(n);++(i))
#define rer(i,l,u) for(int (i)=(int)(l);(i)<=(int)(u);++(i))
#define reu(i,l,u) for(int (i)=(int)(l);(i)<(int)(u);++(i))
#if defined(_MSC_VER) || __cplusplus > 199711L
#define aut(r,v) auto r = (v)
#else
#define aut(r,v) typeof(v) r = (v)
#endif
#define each(it,o) for(aut(it, (o).begin()); it != (o).end(); ++ it)
#define all(o) (o).begin(), (o).end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair((x),(y))
#define mset(m,v) memset(m,v,sizeof(m))
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
using namespace std;
typedef vector<int> vi; typedef pair<int,int> pii; typedef vector<pair<int,int> > vpii;
typedef long long ll; typedef vector<long long> vl; typedef pair<long long,long long> pll; typedef vector<pair<long long,long long> > vpll;
typedef vector<string> vs; typedef long double ld;
template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }
template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }

ll sq(int x) { return (ll)x*x; }
int main() {
	pii ps[4];
	rep(i, 3) cin >> ps[i].first >> ps[i].second;
	ll dists[6];
	rer(x, -400, 400) rer(y, -400, 400) {
		ps[3] = mp(x, y);
		int k = 0;
		rep(i, 4) rep(j, i)
			dists[k++] = sq(ps[i].first - ps[j].first) + sq(ps[i].second - ps[j].second);
		sort(dists, dists + 6);
		bool ok = true;
		ok &= dists[0] != 0;
		ok &= dists[0] == dists[3];
		ok &= dists[4] == dists[5];
		if(ok) {
			cout << x << " " << y << endl;
			return 0;
		}
	}
	puts("-1");
	return 0;
}