BankAccauntGenerator

import java.util.Scanner;

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

        int a = Integer.parseInt(scanner.nextLine());
        char b = scanner.nextLine().charAt(0);
        char c = scanner.nextLine().charAt(0);
        char d = scanner.nextLine().charAt(0);
        int e = Integer.parseInt(scanner.nextLine());
        int n = Integer.parseInt(scanner.nextLine());

        String pass = "";
        int i = 0;

        for (int first = a; first <= 99; first++) {
            for (int second = e; second > 10; second--) {
                if (first % 10 == 2 && second % 10 == 5) {
                    i++;
                    for (char third = b; third <= 'Z'; third++) {
                        i++;
                        for (char fourth = c; fourth <= 'z'; fourth++) {
                            i++;
                            for (char fifth = d; fifth <= 'Z'; fifth++) {
                                i++;
                                pass = "" + first + third + fourth + fifth + second;
                                if (i == n) {
                                    System.out.println(pass);
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}