#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>
#include <bitset>
#include <cassert>

using namespace std;


int main() {
    int N;
    cin >> N;
    int ai, ai2;
    cin >> ai;
    cin >> ai2;
    int mi = abs(ai - ai2);
    int ma = mi;
    int f = ai;
    for (int i = 2; i < N; ++i) {
        ai = ai2;
        cin >> ai2;
        int t = abs(ai - ai2);
        mi = min(mi, t);
        if (i == N - 1) {
            ma = max(ma,abs(f-ai2));
        }
    }
    cout << mi << endl;
    cout << ma << endl;

    return 0;
}