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

namespace SimpleCSharpApp
{
    class Program
    {
        public static long sum = 0;
        public static long n = 0;

        public static void Main()
        {
            n = Convert.ToInt64(Console.ReadLine());

            string output = "";
            long count = 0;
            long temp = 0;

            if (n > 1)
            {
                for (long i = 1; i < n; i++)
                {
                    temp = n - sum;

                    if (i < temp - i)
                    {
                        sum += i;
                        output += (i.ToString() + " ");
                        count++;
                    }
                    else
                    {
                        output += (temp.ToString() + " ");
                        count++;
                        sum += temp;
                        break;
                    }
                }
            }
            else
            {
                output += "1 ";
                count++;
            }

            Console.WriteLine(count.ToString());

            Console.WriteLine(output);
            Console.Read();
        }
    }
}