import re
import email.utils

n = int(input())
pattern = r"^([a-zA-Z][a-zA-Z0-9\_\-\.]+)\@[a-zA-Z]+\.[a-zA-Z]{1,3}$"
for _ in range(n):
    name, email_address = email.utils.parseaddr(input())
    if re.search(pattern, email_address):
        print(email.utils.formataddr((name, email_address)))

import re
import email.utils

n = int(input())
pattern = re.compile(r"^([a-zA-Z][a-zA-Z0-9\_\-\.]+)\@[a-zA-Z]+\.[a-zA-Z]{1,3}$", re.IGNORECASE)
for _ in range(n):
    name, email_address = email.utils.parseaddr(input())
    if pattern.match(email_address):
        print(email.utils.formataddr((name, email_address)))

import re
import email.utils

n = int(input())
pattern = r"^([a-zA-Z][a-zA-Z0-9\_\-\.]+)\@[a-zA-Z]+\.[a-zA-Z]{1,3}$"
for _ in range(n):
    name, email_address = email.utils.parseaddr(input())
    if re.search(pattern, email_address):
        print(email.utils.formataddr((name, email_address)))

from re import compile
from email.utils import parseaddr, formataddr

rex_email = r'''(?aix)^
    (?P<user>[a-z][-\w.]*)
    [@]
    (?P<domain>[a-z]+)
    [.]
    (?P<extension>[a-z]{1,3})
$
'''
pattern = compile(rex_email)
for each in range(int(input())):
    name, addr = parseaddr(input())
    if not (name and addr):
        continue
    if not pattern.match(addr):
        continue
    print(formataddr((name, addr)))