15.CensorEmail

import java.util.Collections;
import java.util.Scanner;

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

        String[]emailTokens = email.split("@");
        String username = emailTokens[0];
        String domain = '@' + emailTokens[1];
        String star = "*";
        String repeatStar = String.join("", Collections.nCopies(username.length(), star));
        String replacedText = text.replace(email, repeatStar + domain);
        System.out.println(replacedText);
    }
}