#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      int gcd;
      cin >> gcd;
      if (i == j) {
        cout << gcd << " ";
      }
    }
  }
  cout << "\n";
  return 0;
}
