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

int main() {
  int N; cin >> N;
  vector<int> A(N);
  for(int i = 0; i < N; i++) cin >> A[i];
  int mindiff = 1000000000, maxdiff = A[N-1]-A[0];
  for(int i = 0; i < N-1; i++){
    mindiff = min(mindiff, A[i+1]-A[i]);
  }
  cout << mindiff << endl << maxdiff << endl;
}