#include <bits/stdc++.h>
#include <assert.h>

using namespace std;

int main()
{
	int n, a[1000];
	cin >> n;
	for (int i = 0; i < n; i++)
		cin >> a[i];
	int mi = 1000000;
	for (int i = 1; i < n; i++)
		mi = min(mi, a[i] - a[i - 1]);
	cout << mi << endl
			 << a[n - 1] - a[0] << endl;

	return 0;
}