#include <iostream>
#include <vector>
#include <limits.h>

using namespace std;

int main() {
  int n, a1;
  cin >> n >> a1;
  vector<int> v(n);
  v[0]=a1;

  int mind=INT_MAX;
  for (int i=1; i<n; i++) {
    cin >> v[i];
    if (v[i]-v[i-1]<mind) mind=v[i]-v[i-1];
  }

  cout << mind << "\n" << v[n-1]-v[0] << endl;
}