06. Stupid Password Generator

#include <iostream>
#include <string>
#include <cmath>
using namespace std;

int main() {
    int numbers;
    int letters;
    cin >> numbers >> letters;

        for (int i = 1; i <= numbers; i++)
        {
            for (int j = 1; j <= numbers; j++)
            {
                for (char k = 'a'; k < 'a' + letters; k++)
                {
                    for (char l = 'a'; l < 'a' + letters; l++)
                    {
                        for (int m = 1; m <= numbers; m++)
                        {
                            if (m > j && m > i)
                            {
                                cout << i << j << k << l << m << " ";
                            }

                        }
                    }
                }
            }
        }
}