#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
using ll = long long;
using namespace std;
const int INF = 1e9;

int main() {
    int n;
    cin >> n;
    vector<int> a(n);
    rep(i, n) cin >> a[i];

    int mi = INF;
    rep(i, n - 1)
        mi = min(mi, a[i + 1] - a[i]);

    cout << mi << endl
         << a[n - 1] - a[0] << endl;

    return 0;
}