using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Diagnostics;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var a = NList;
        var min = int.MaxValue;
        for (var i = 0; i + 1 < n; ++i) min = Math.Min(min, a[i + 1] - a[i]);
        WriteLine(min);
        WriteLine(a[n - 1] - a[0]);
    }
}