#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,b,e) for (int i=(int)(b); i<(int)(e); i++)
#define ALL(x) (x).begin(), (x).end()

const double PI = acos(-1);

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  int n;
  cin >> n;
  vector<int> a(n);
  REP (i, n) cin >> a[i];

  int x = numeric_limits<int>().max();
  int y = numeric_limits<int>().min();

  REP (i, n) REP (j, i) {
    int z = abs(a[i] - a[j]);
    x = min(x, z);
    y = max(y, z);
  }

  cout << x << endl;
  cout << y << endl;

  return 0;
}