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

#define int long long

signed main(){
  int x1,y1,x2,y2,x3,y3;cin>>x1>>y1>>x2>>y2>>x3>>y3;
  for(int x4=-300;x4<=300;x4++){
    for(int y4=-300;y4<=300;y4++){
      map<int,int> m;
      m[(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)]++;
      m[(x1-x3)*(x1-x3)+(y1-y3)*(y1-y3)]++;
      m[(x1-x4)*(x1-x4)+(y1-y4)*(y1-y4)]++;
      m[(x3-x2)*(x3-x2)+(y3-y2)*(y3-y2)]++;
      m[(x4-x2)*(x4-x2)+(y4-y2)*(y4-y2)]++;
      m[(x3-x4)*(x3-x4)+(y3-y4)*(y3-y4)]++;
      if(m.size()!=2)continue;
      int A=m.begin()->first;
      if(m[A]==4&&m[A*2]==2){
        cout<<x4<<" "<<y4<<endl;
        return 0;
      }
    }
  }
  cout<<-1<<endl;
}