Stupid Password Generator

using System;

namespace StupidPasswordGenerator
{
    class Program
    {
        static void Main(string[] args)
        {
           int n = int.Parse(Console.ReadLine());
           int l = int.Parse(Console.ReadLine());

            for (int a = 1; a <= n; a++)
            {
                for (int b = 1; b <= n; b++)
                {
                    for (int c = 97; c < 97 + l; c++)
                    {
                        for (int d = 97; d < 97 + l; d++)
                        {
                            for (int e = Math.Max(a,b) + 1; e <= n; e++)
                            {
                                Console.Write($"{a}{b}{(char)c}{(char)d}{e} ");
                            }
                        }
                    }
                }
            }
        }
    }
}