/**
 *  author:   TakeruOkuyama
 *  created:  2020-04-09 14:53:46
**/
#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main(){
    int N;
    cin >> N;
    vector<int> a(N);
    rep(i, N){
        cin >> a[i];
    }
    int max = a[N - 1] - a[0];
    int min = max;
    rep(i, N - 1){
        if((a[i + 1] - a[i]) < min){
            min = a[i + 1] - a[i];
        }
    }
    cout << min << endl << max << endl;
return 0;}

/**
**/