


from __future__ import annotations







class    lowerCamelCase__     :





     def __init__(self	,  UpperCAmelCase )  ->     None:
          _lowercase							   =data
          _lowercase							   =None







class    lowerCamelCase__     :





     def __init__(self )  ->     Dict:
          _lowercase							   =None





     def   __A      (self	,  UpperCAmelCase )  ->     int:
          _lowercase							   =Node(UpperCAmelCase )
          _lowercase							   =self.head
          _lowercase							   =new_node
          return self.head.data





     def   __A      (self )  ->     int | None:
          _lowercase							   =self.head
          _lowercase							   =self.head
          if self.head:
               while fast_pointer and fast_pointer.next:
                    _lowercase							   =fast_pointer.next.next
                    _lowercase							   =slow_pointer.next
               return slow_pointer.data
          else:
               print('''No element found.''' )
               return None


if __name__ == "__main__":
  UpperCAmelCase__     			=							LinkedList()
  for _ in range(int(input().strip())):
    UpperCAmelCase__     			=							int(input().strip())
    link.push(data)
  print(link.middle_element())





import requests

try:
  from django.contrib.auth import authenticate, login
  from django.shortcuts import redirect, render
except ImportError:
  UpperCAmelCase__     			=							UpperCAmelCase__     			=							UpperCAmelCase__     			=							UpperCAmelCase__     			=							print
def        UpperCAmelCase_      (							__snake_case		)  ->    List[str]:







 """simple docstring"""


 _lowercase							   ='''secretKey'''
 _lowercase							   ='''https://www.google.com/recaptcha/api/siteverify'''

 # when method is not POST, direct user to login page
 if request.method != "POST":
  return render(__snake_case  ,		'''login.html'''		)

 # from the frontend, get username, password, and client_key
 _lowercase							   =request.POST.get('''username'''		)
 _lowercase							   =request.POST.get('''password'''		)
 _lowercase							   =request.POST.get('''g-recaptcha-response'''		)

 # post recaptcha response to Google's recaptcha api
 _lowercase							   =requests.post(__snake_case  ,		data={'''secret''': secret_key, '''response''': client_key}		)
 # if the recaptcha api verified our keys
 if response.json().get('''success'''  ,		__snake_case		):
  # authenticate the user
  _lowercase							   =authenticate(__snake_case  ,		username=__snake_case  ,		password=__snake_case		)
  if user_in_database:
   login(__snake_case  ,		__snake_case		)
   return redirect('''/your-webpage'''		)
 return render(__snake_case  ,		'''login.html'''		)

