using System;
using System.Linq;
using System.Collections.Generic;
using System.Runtime.Intrinsics.X86;
using System.Diagnostics;

namespace yukicoder 
{
    class Program
    {
        static void Main()
        {
            var inp = int.Parse(Console.ReadLine());
            var i = 0;
            var cnt = 0;

            while (inp > 1) 
            {
                inp = inp /= 2;
                Console.WriteLine(inp);
                cnt++;

            }
            
            if (IsEven(cnt))
            {
                //cnt = cnt + 2;
                Console.WriteLine(cnt);
            }
            else
            {

                cnt = cnt + 1; 
                Console.WriteLine(cnt);
                Console.WriteLine("-");
            }
        }
        public static bool IsEven(int num)
        {
            return num % 2 == 0;
        }
    }
}