import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		new Main().run();
	}

	void run() {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int[] a = new int[N];
		for (int i = 0; i < N; ++i) {
			a[i] = sc.nextInt();
		}
		long min = Long.MAX_VALUE / 3, max = -Long.MAX_VALUE / 3;
		for (int i = 0; i < N; ++i) {
			for (int j = 0; j < N; ++j) {
				if (i == j)
					continue;
				min = Math.min(min, Math.abs(a[i] - a[j]));
				max = Math.max(max, Math.abs(a[i] - a[j]));
			}
		}
		System.out.println(min);
		System.out.println(max);
	}
}