import java.util.*;

class Main {
	static Scanner sc = new Scanner(System.in);
	public static void main(String[] args) {
		
		int n = sc.nextInt();
		int[] ar = new int[n];
		int min = Integer.MAX_VALUE;
		for (int i=0; i<n; i++) {
			ar[i] = sc.nextInt();
			if (i > 0) {
				min = Math.min(min, Math.abs(ar[i]-ar[i-1]));
			}
		}
		Arrays.sort(ar);
		System.out.println(min);
		System.out.println(ar[n-1]-ar[0]);
		
		
	}
}