Magic numbers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Magic_numbers
{
    class Program
    {
        static void Main(string[] args)
        {
         // Variant 1
            int n = int.Parse(Console.ReadLine());

            int n1 = 0;
            int n2;
            int n3;
            int n4;
            int n5;
            int n6;

            while (n1 <= 9)
            {
                n2 = 0;
                while (n2 <= 9)
                {
                    n3 = 0;
                    while (n3 <= 9)
                    {
                        n4 = 0;
                        while (n4 <= 9)
                        {
                            n5 = 0;
                            while (n5 <= 9)
                            {
                                n6 = 0;
                                while (n6 <= 9)
                                {
                                    if (n1 * n2 * n3 * n4 * n5 * n6 == n)
                                    {
                                        Console.Write("{0}{1}{2}{3}{4}{5}", n1, n2, n3, n4, n5, n6);
                                        Console.Write(" ");
                                    }
                                    n6++;
                                }
                                n5++;
                            }
                            n4++;
                        }
                        n3++;
                    }
                    n2++;
                }
                n1++;
            }
            Console.WriteLine();

        //  Variant 2

          /*int magic = int.Parse(Console.ReadLine());

            for (int num1 = 0; num1 <= 9; num1++)
            {
                for (int num2 = 0; num2 <= 9; num2++)
                {
                    for (int num3 = 0; num3 <= 9; num3++)
                    {
                        for (int num4 = 0; num4 <= 9; num4++)
                        {
                            for (int num5 = 0; num5 <= 9; num5++)
                            {
                                for (int num6 = 0; num6 <= 9; num6++)
                                {
                                    if (num1 * num2 * num3 * num4 * num5 * num6 == magic)
                                    {
                                        Console.Write("{0}{1}{2}{3}{4}{5}", num1, num2, num3, num4, num5, num6);
                                        Console.Write(" ");
                                    }
                                }
                            }
                        }
                    }
                }
            }
            Console.WriteLine();*/
        }
    }
}