#include <bits/stdc++.h>
using namespace std;
using LL = long long;
using G = vector<vector<int>>;
int di[] = {0, -1, 0, 1};
int dj[] = {1, 0, -1, 0};
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (i == j) continue;
      int d = abs(a[i] - a[j]);
      if (d % (n - 1) == 0) {
        cout << a[i] << " " << a[j] << endl;
        return 0;
      }
    }
  }
  return 0;
}
