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

class Program
{
    public void Solve()
    {
        int N = int.Parse(Console.ReadLine());
        List<int> a = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToList();

        int min = int.MaxValue;
        int prePoint = a.Min();
        foreach (var point in a.OrderBy(x => x).Skip(1))
        {
            var diff = Math.Abs(point - prePoint);
            min = (diff < min ? diff : min);
            prePoint = point;
        }
        Console.WriteLine(min);
        Console.WriteLine(a.Max() - a.Min());
    }

    static void Main()
    {
        var solver = new Program();
        solver.Solve();
    }
}