using System;

namespace _638
{
    class Program
    {
        static void Main(string[] args)
        {
            long n = long.Parse(Console.ReadLine());
            long[] poweroftwo = new long[] { 1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536,131072,262144,524288,1048576,2097152,4194304,8388608,16777216,33554432,67108864,134217728,268435456,536870912,1073741824,2147483648,4294967296,8589934592,17179869184,34359738368,68719476736,137438953472,274877906944,549755813888,1099511627776,2199023255552,4398046511104,8796093022208,17592186044416,35184372088832,70368744177664,140737488355328,281474976710656,562949953421312,1125899906842624,2251799813685248,4503599627370496,9007199254740992,18014398509481984,36028797018963968,72057594037927936,144115188075855872,288230376151711744,576460752303423488 };
            bool found = false;
            long i = 1;
            for (; i < n; i++)
            {
                if (Array.IndexOf(poweroftwo,i) < 0 && Array.IndexOf(poweroftwo,n - i) < 0)
                {
                    found = true;
                    break;
                }
            }
            Console.WriteLine(found ? i + " " + (n - i) : "-1");
        }
    }
}