using System.Text;
using System.Collections.Generic;
using System;

public class P
{
    public int x { get; set; }
    public int y { get; set; }
    public int z { get; set; }
}

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        getAns(n);
    }
    static void print(List<P> ps)
    {
        var c = 0;
        var sb = new StringBuilder();
        foreach (var x in ps)
        {
            if (x.x == x.y && x.y == x.z)
            {
                c++;
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.y, x.z));
            }
            else if (x.x == x.y)
            {
                c += 3;
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.y, x.z));
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.z, x.y));
                sb.Append(string.Format("{0} {1} {2}\n", x.z, x.x, x.y));
            }
            else if (x.y == x.z)
            {
                c += 3;
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.y, x.z));
                sb.Append(string.Format("{0} {1} {2}\n", x.y, x.x, x.z));
                sb.Append(string.Format("{0} {1} {2}\n", x.y, x.z, x.x));
            }
            else
            {
                c += 6;
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.y, x.z));
                sb.Append(string.Format("{0} {1} {2}\n", x.x, x.z, x.y));
                sb.Append(string.Format("{0} {1} {2}\n", x.y, x.x, x.z));
                sb.Append(string.Format("{0} {1} {2}\n", x.y, x.z, x.x));
                sb.Append(string.Format("{0} {1} {2}\n", x.z, x.x, x.y));
                sb.Append(string.Format("{0} {1} {2}\n", x.z, x.y, x.x));
            }
        }
        Console.WriteLine(c);
        Console.Write(sb);
    }
    static void getAns(int n)
    {
        var ps = new List<P>();
        for (int i = 0; i * i <= n; i++)
        {
            for (int j = i; j * j <= n; j++)
            {
                if (i == 0 && j == 0) continue;
                var w = n - i * j;
                if (w % (i + j) == 0)
                {
                    var z = w / (i + j);
                    if (z >= j) ps.Add(new P { x = i, y = j, z = z });
                }
            }
        }
        print(ps);
    }
}