#include "bits/stdc++.h" using namespace std; int main(){ vector ar(3); ar[0] = 0; ar[1] = 1; ar[2] = 2; vector X(3), Y(3); for (int i = 0; i < 3; i++) { cin >> X[i] >> Y[i]; } do{ int dy = Y[ar[1]] - Y[ar[0]]; int dx = X[ar[1]] - X[ar[0]]; if (Y[ar[2]] == Y[ar[1]] + dx && X[ar[2]] == X[ar[1]] - dy){ int Y3 = Y[ar[2]] - dy; int X3 = X[ar[2]] - dx; cout << X3 << " " << Y3 << endl; return 0; } } while (next_permutation(ar.begin(), ar.end())); cout << -1 << endl; }