#include <bits/stdc++.h>
#ifdef _DEBUG
#include "debug.hpp"
#else
#define debug(...)
#endif
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define precise(i) fixed << setprecision(i)
using ill = int64_t;
using ull = uint64_t;
using namespace std;

void solve() {
  int n;
  cin >> n;
  vector<int> ps(n);
  for (auto &p : ps) cin >> p;

  int maxd = ps.back() - ps.front();
  int mind = 10e6;
  for (size_t i = 0; i < ps.size() - 1; i++) {
    mind = min(mind, ps[i + 1] - ps[i]);
  }

  cout << mind << '\n' << maxd << '\n';
}

void wrapper() {
  rep(i, 3) {
    cout << "[TEST " << i + 1 << "]\n";
    solve();
    cout << "\n";
  }
}

int main() {
  fastIO;
#ifdef _DEBUG
  wrapper();
#else
  solve();
#endif
}