#include <bits/stdc++.h>
using namespace std;
int main() {
  int x1, y1;
  int x2, y2;
  int x3, y3;
  int x4, y4;
  cin >> x1 >> y1 >> x2 >> y2;
  if (x1 != x2 && y1 == y2) {
    x3 = x1;
    y3 = y1 + (x2 - x1);
    x4 = x2;
    y4 = y3;
  } else if (x1 != x2 && y1 != y2) {
    if ((y2 - y1) * 1.0 / (x2 - x1) != 1.0 &&
        (y2 - y1) * 1.0 / (x2 - x1) != -1.0) {
      cout << -1 << endl;
      return 0;
    }
    x3 = x1;
    y3 = y2;
    x4 = x2;
    y4 = y1;
  } else if (x1 == x2 && y1 != y2) {
    x3 = x1 + (y2 - y1);
    y3 = y1;
    x4 = x3;
    y4 = y2;
  } else {
    cout << -1 << endl;
    return 0;
  }
  cout << x3 << " " << y3 << " " << x4 << " " << y4 << endl;
  return 0;
}
