Group Name

import java.util.Scanner;

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

        char firstLetter = scanner.nextLine().charAt(0);
        char b = scanner.nextLine().charAt(0);
        char c = scanner.nextLine().charAt(0);
        char d = scanner.nextLine().charAt(0);
        int num = Integer.parseInt(scanner.nextLine());

        int count = 0;
        for (int i = 65; i <= firstLetter; i++) {
            for (int j = 97; j <= b; j++) {
                for (int k = 97; k <= c; k++) {
                    for (int l = 97; l <= d; l++) {
                        for (int m = 0; m <= num ; m++) {
                            count++;
                        }
                    }
                }
            }
        }
        System.out.println(count - 1);

    }
}