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

signed main(){
  int n;cin>>n;
  vector<int>a;
  int mindif=100000000;
  rep(i,n){
    int temp;
    cin>>temp;
    a.push_back(temp);
    if(i != 0) mindif=min(mindif,a[i]-a[i-1]);
  }
  cout<<mindif<<endl;
  cout<<a[n-1]-a[0]<<endl;
  
  return 0;
}