#include <bits/stdc++.h>
using namespace std;

int main() {
  int n, d = 10e8;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    if (i > 0) {
      d = min(d, a[i] - a[i - 1]);
    }
  }
  cout << d << '\n' << a[n - 1] - a[0] << endl;
  return 0;
}