#include "bits/stdc++.h"
using namespace std;

int main() {
	long long N, A[1000], MIN = 100000000000;
	cin >> N >> A[0];
	for (int i = 1; i < N; i++) {
		cin >> A[i];
		MIN = min(MIN, A[i] - A[i - 1]);
	}
	cout << MIN << endl << A[N - 1] - A[0] << endl;
}