import java.util.*;

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