L07u15_StupidPasswordGenerator

package Uprajneniq;

import java.util.Scanner;

/**
 * Created by todor on 21.02.2017 г..
 */
public class u15_StupidPasswordGenerator { // SPG??
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = Integer.parseInt(scan.nextLine());
        int l = Integer.parseInt(scan.nextLine());

        for (int firstNum = 1; firstNum <= n; firstNum++) {
            for (int secondNum = 1; secondNum <= n; secondNum++) {
                for (char firstLetter = 'a'; firstLetter < 'a' + l; firstLetter++) {
                    for (char secondLetter = 'a'; secondLetter < 'a' + l; secondLetter++) {
                        for (int lastNum = Math.max(firstNum, secondNum) + 1; lastNum <= n; lastNum++) {
                            if (lastNum > n){
                                return;
                            }
                            System.out.printf("%d%d%s%s%d ", firstNum, secondNum, firstLetter, secondLetter, lastNum);
                        }
                    }
                }
            }
        }
    }
}