#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)

int main() {
  int n;cin>>n;
  vector<ll> a(n);
  rep(i,n) cin>>a[i];
  ll mi =1e9;
  ll ma=-1;
  rep(i,n) {
    rep(j,n) {
      if(i==j) continue;
      mi=min(mi,abs(a[i]-a[j]));
      ma=max(ma,abs(a[i]-a[j]));
    }
  }
  cout<<mi<<endl;
  cout<<ma<<endl;
  return 0;
}