Input Format
The first line contains a single integer, , denoting the number of email address.
Each line  of the  subsequent lines contains a name and an email address as two space-separated values following this format:
name <user@email.com>

Constraints
Output Format
Print the space-separated name and email address pairs containing valid email addresses only. Each pair must be printed on a new line in the following format:
name <user@email.com>

You must print each valid email address in the same order as it was received as input.

### Problem solution in Python 3 programming language.

import re
from email.utils import *
for i in range(int(input())):
email = parseaddr(input())
# print email[1]
# \w is equivalent to a-zA-Z_
if bool(re.search(r'^[a-zA-Z][\w\-\.]*@[A-Za-z]+\.[a-zA-Z]{1,3}$', email[1])): print(formataddr(email)) #### Second solution # Enter your code here. Read input from STDIN. Print output to STDOUT import re n = int(input()) for _ in range(n): x, y = input().split(' ') m = re.match(r'<[A-Za-z](\w|-|\.|_)+@[A-Za-z]+\.[A-Za-z]{1,3}>', y) if m: print(x,y) ### Problem solution in Python 2 programming language. import re from email.utils import * for i in range(int(raw_input())): email = parseaddr(raw_input()) # print email[1] # \w is equivalent to a-zA-Z_ if bool(re.search(r'^[a-zA-Z][\w\-\.]*@[A-Za-z]+\.[a-zA-Z]{1,3}$', email[1])):
print formataddr(email)