def check_email(email):
	import re 
	regex = '^[a-z0-9]+[\._]?[a-z0-9]+[@]\w+[.]\w{2,3}$'
	 
	if(re.search(regex,email)): 
		return ("Valid Email") 
	else: 
		return ("Invalid Email") 
def heap_queue_largest(nums,n):
  import heapq as hq
  
  largest_nums = hq.nlargest(n, nums)
  return largest_nums