The song of wheels

import java.util.Scanner;

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

        int n = Integer.parseInt(scan.nextLine());
        int count = 0;

        String password = "";
        boolean passwordIsFound = false;

        for (int i = 1; i <= 9; i++) {
            for (int j = 1; j <= 9; j++) {
                for (int k = 1; k <= 9; k++) {
                    for (int l = 1; l <= 9; l++) {

                        if (i < j && k > l) {
                            if (i * j + k * l == n) {
                                count++;
                                System.out.printf("%d%d%d%d ", i, j, k, l);
                                if (count == 4) {
                                    // password = i + "" + j + "" + k + "" + l + ""; OK
                                    //password = "i" + "j" + "k" + "l"; Not OK
                                    //password = String.valueOf(i) + String.valueOf(j); OK
                                    password = String.format("%d%d%d%d", i, j, k, l); // OK
                                    passwordIsFound = true;
                                }
                            }
                        }
                    }
                }
            }
        }
//        if(!passwordIsFound){
//            System.out.println("No!");
//        }else{
//            System.out.println("Password: " + password);
//        }
        System.out.println();
        if(password.equals("")){
            System.out.println("No!");
        }else{
            System.out.println("Password: " + password);
        }
    }
}