validate email address

import re
 
def fun(email):
    if len(email) > 7:
        if re.match("^([a-zA-Z0-9_\-]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,3})(\]?)$", email) != None:
            return True
    return False
  
 
def filter_mail(emails):
    return list(filter(fun, emails))
 
if __name__ == '__main__':
    n = int(input())
    emails = []
 
    for _ in range(n):
        emails.append(input())
 
filtered_emails = filter_mail(emails)
filtered_emails.sort()
 
print(filtered_emails)