using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;
using System.Diagnostics;

class Scanner
{
    private readonly char Separator = ' ';
    private int Index = 0;
    private string[] Line = new string[0];
    public string Next()
    {
        if (Index >= Line.Length)
        {
            Line = Console.ReadLine().Split(Separator);
            Index = 0;
        }
        var ret = Line[Index];
        Index++;
        return ret;
    }

    public int NextInt()
    {
        return int.Parse(Next());
    }

    public long NextLong()
    {
        return long.Parse(Next());
    }
}

class Program
{
    private long N;
    private void Scan()
    {
        var sc = new Scanner();
        N = sc.NextLong();
    }

    public void Solve()
    {
        Scan();
        for (long a = 1; a < N; a++)
        {
            long b = N - a;
            if (!(TwoPow(a) || TwoPow(b)))
            {
                Console.WriteLine("{0} {1}", a, b);
                return;
            }
        }
        Console.WriteLine(-1);
    }

    private bool TwoPow(long n)
    {
        return (n & (n - 1)) == 0;
    }

    static public void Main()
    {
        new Program().Solve();
    }
}