import java.util.ArrayList;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;

import java.util.Map;

import java.util.Scanner;

import java.util.Set;

public class Main{

    // Map为接口不能实例化，所以需要实例化HashMap

    static Map<String, List<String>> map = new HashMap<String, List<String>>();

    // 多个类要用到 scanner，不能再每个类里面自己建立，否则缓冲区会出现问题

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {

        while (sc.hasNext()) {

            map.clear();

            while (true) {

                String type = sc.next();

                if ("*".equals(type)) {

                    while (!"*".equals(Solve()));

                    break;

                }

                String email, name;

                int num;

                email = sc.next();

                num = sc.nextInt();

                // 每次重构list，否则会清空之前还是map里面的值

                List<String> list = new ArrayList<String>();

                while (num > 0) {

                    name = sc.next();

                    //这儿直接存储邮件地址而不是只存name，后面就可以直接比较了

                    list.add(name+"@"+email);

                    --num;

                }

                map.put(email, list);

            }

        }

    }

    private static String Solve() {

        String sender;

        String[] recipient = new String[100000];

        sender = sc.next();

        if ("*".equals(sender))

            return sender;

        Set<String> set=new HashSet<String>();

        recipient[0] = sc.next();

        set.add(recipient[0]);

        int coun = 0;

        while (!"*".equals(recipient[coun])) {

            recipient[++coun] = sc.next();

            if(set.contains(recipient[coun])){

                coun--;

            }else{

                set.add(recipient[coun]);

            }

        }

        //去除回车

        sc.nextLine();

        String data = "";

        String temp=sc.nextLine();

        while (!"*".equals(temp)) {

            //将所有行都加入data中

            data=data+"     "+temp+"\n";

            temp=sc.nextLine();

        }

        int[] vis = new int[100000];

        for (int i=0;i<vis.length;++i)

            vis[i]=0;

        for (int i = 0; i < coun; ++i) {

            if (vis[i] == 0) {

                String senderName = Las(sender);

                String recipientName = Las(recipient[i]);

                System.out.println("Connection between " + senderName + " and " + recipientName);

                System.out.println("     HELO " + senderName);

                System.out.println("     250");

                System.out.println("     MAIL FROM:<" + sender + ">");

                System.out.println("     250");

                int flag = 0;

                for (int j = i; j < coun; ++j) {

                    if (vis[j] == 0 && recipientName!=null&& recipientName.length()!=0&& recipientName.equals(Las(recipient[j]))) {

                        vis[j] = 1;

                        System.out.println("     RCPT TO:<" + recipient[j] + ">");

                        if (Check(map.get(recipientName), recipient[j])) {

                            System.out.println("     250");

                            flag = 1;

                        } else {

                            System.out.println("     550");

                        }

                    }

                }

                if (flag == 1) {

                    System.out.println("     DATA");

                    System.out.println("     354");

                    System.out.print(data);

                    System.out.println("     .");

                    System.out.println("     250");

                }

                System.out.println("     QUIT");

                System.out.println("     221");

            }

        }

        return null;

    }

    private static boolean Check(List list, String com) {

        if (list == null || list.isEmpty())

            return false;

        for (Object i : list) {

            if (com!=null&& com.length()>0&&com.equals((String) i)) {

                return true;

            }

        }

        return false;

    }

    private static String Las(String string) {

        int i;

        for (i = 0; i < string.length(); ++i) {

            char temp = string.charAt(i);

            if (temp == '@') {

                ++i;

                break;

            }

        }

        String ans = "";

        for (; i < string.length(); ++i) {

            ans += string.charAt(i);

        }

        return ans;

    }

}