#include<stdio.h>
int main()
{
	int n;
	scanf("%d", &n);
	int i;
	int a[1003];
	for (i = 0; i < n; i++)
		scanf("%d", &a[i]);
	int min = 1000000009;
	for (i = 0; i < n - 1; i++)
		if (min > a[i + 1] - a[i])
			min = a[i + 1] - a[i];
	printf("%d\n%d\n", min, a[n - 1] - a[0]);
	return 0;
}