Stupid Pass Generator

import java.util.Scanner;

public class P06_StupidPassGenerator {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());
        int l = Integer.parseInt(scanner.nextLine());

        for (int i = 1; i < n; i++) {
            for (int j = 1; j < n; j++) {
                for (char k = 97; k <(char)97+l; k++) {
                    for (char m = 97; m < (char)97+l; m++) {
                        for (int o = 1; o <=n; o++) {
                            if (o>i && o>j) {
                                System.out.print(i + "" + j + "" + k + "" + m + "" + o + "" + " ");
                            }
                        }
                    }
                }
            }
        }
    }
}