using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static long[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = long.Parse(ReadLine());
        var ans = new List<long>();
        while (s > 0)
        {
            var sq = Square(s);
            ans.Add(sq);
            s -= sq;
        }
        WriteLine(ans.Count);
        WriteLine(string.Join(" ", ans));
    }
    static long Square(long s)
    {
        var ok = 1L;
        var ng = 1_000_000_001L;
        while (ng - ok > 1)
        {
            var mid = (ok + ng) / 2;
            if (mid * mid <= s) ok = mid;
            else ng = mid;
        }
        return ok * ok;
    }
}