/* -*- coding: utf-8 -*-
 *
 * 716.cc: No.716 距離 - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int INF = 1 << 30;

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int n, a0;
  scanf("%d%d", &n, &a0);

  int pa = a0, mind = INF;
  for (int i = 1; i < n; i++) {
    int ai;
    scanf("%d", &ai);
    int d = ai - pa;
    if (mind > d) mind = d;
    pa = ai;
  }

  printf("%d\n%d\n", mind, pa - a0);
  return 0;
}