using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace YukiCoder
{
    class Program
    {
        static void Main(string[] args)
        {
            int nn = int.Parse(Console.ReadLine());
            var va = Console.ReadLine().Split().Select(int.Parse).ToList();
            var vb = va.Skip(1).Select((n, i) => n - va[i]);
            int min = vb.Min();
            int max = va[nn - 1] - va[0];
            Console.WriteLine(min);
            Console.WriteLine(max);
            Console.ReadLine();
        }
    }
}