#include <bits/stdc++.h>

using namespace std;

void solve() {
  int n;
  cin >> n;
  vector<pair<int, int>> points(n);
  for(auto &[i, j] : points){
    cin >> i >> j;
  }
  auto [x, y] = points[0];
  auto p1 = points[0];
  pair<int, int> p2 = p1;
  for (auto [i, j] : points)
  {
    if(i != x && j != y && abs(x-i) != abs(y-j)){
      p2 = {i, j};
      break;
    }
  }
  if(p1 == p2){
    cout << "YES" << '\n';
    cout << p1.first << " " << p2.second << '\n';
    return;
  }
  vector<pair<int, int>> pos;
  vector<pair<int, int>> napr = {
      {1, 0},
      {0, 1},
      {1, 1},
      {1, -1},
  };
  auto det = [](int a, int b, int c, int d) {
    return a * d - b * c;
  };
  // cout << p1.first << " " << p1.second << '\n';
  // cout << p2.first << " " << p2.second << '\n';

  // dx1 * x - dy2 * y  + x1 - y1 = 0
  for (auto [dx1, dy1] : napr)
  {
    for(auto [dx2, dy2] : napr){
      int det1 = det(dx1, -dy1, dx2, -dy2);
      int det2 = det((-dx1*p1.first+dy1*p1.second), -dy1, -dx2*p2.first+dy2*p2.second, -dy2);
      int det3 = det(dx1, -dx1*p1.first+dy1*p1.second, dx2, -dx2*p2.first+dy2*p2.second);
      // cout << det1 << " " << det2 << " " << det3 << '\n';
     
      if (det1 == 0 || det2 % det1 != 0 || det3 % det1 != 0)
      {
        continue;
      }
      int x = -det2 / det1;
      int y = -det3 / det1;
      // cout << x << " " << y << endl;
      // cout << p1.first + x * dx1 << " " << p2.first + x * dx2 << endl;
      // assert(p1.first + x * dx1 == p2.first + x * dx2);
      // assert(p1.second + y * dy1 == p2.second + y * dy2);
      pos.push_back({x, y});
    }
  }

  

  for(auto [x, y] : pos){
    // cout << x << " " << y << '\n';
    bool fl = true;
    for (auto [xx, yy] : points)
    {
      if (xx != x && yy != y && abs(x - xx) != abs(y - yy))
      {
        fl = false;
        break;
      }
    }
    if(fl){
      cout << "YES" << '\n';
      cout << x << " " << y << '\n';
      return;
    }
  }
  cout << "NO" << '\n';
}

signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int t = 1;
  cin >> t;
  while (t--) {
    solve();
  }
}