


'''simple docstring'''

import sys

lowerCamelCase				:  int    		=      (
    '73167176531330624919225119674426574742355349194934'
    '96983520312774506326239578318016984801869478851843'
    '85861560789112949495459501737958331952853208805511'
    '12540698747158523863050715693290963295227443043557'
    '66896648950445244523161731856403098711121722383113'
    '62229893423380308135336276614282806444486645238749'
    '30358907296290491560440772390713810515859307960866'
    '70172427121883998797908792274921901699720888093776'
    '65727333001053367881220235421809751254540594752243'
    '52584907711670556013604839586446706324415722155397'
    '53697817977846174064955149290862569321978468622482'
    '83972241375657056057490261407972968652414535100474'
    '82166370484403199890008895243450658541227588666881'
    '16427171479924442928230863465674813919123162824586'
    '17866458359124566529476545682848912883142607690042'
    '24219022671055626321111109370544217506941658960408'
    '07198403850962455444362981230987879927244284909188'
    '84580156166097919133875499200524063689912560717606'
    '05886116467109405077541002256983155200055935729725'
    '71636269561882670428252483600823257530420752963450'
)

def _SCREAMING_SNAKE_CASE (A			)			->			int:






       """simple docstring"""







       lowercase__      =					1
       for digit in s:
              product *= int(A			)
       return product

def _SCREAMING_SNAKE_CASE (A = N			)			->			int:






       """simple docstring"""







       lowercase__      =					-sys.maxsize - 1
       lowercase__      =					n[:13]
       lowercase__      =					13
       while cur_index < len(A			) - 13:
              if int(n[cur_index]			) >= int(substr[0]			):
                     lowercase__      =					substr[1:] + n[cur_index]
                     cur_index += 1
              else:
                     lowercase__      =					max(A    ,					str_eval(A			)			)
                     lowercase__      =					n[cur_index : cur_index + 13]
                     cur_index += 13
       return largest_product


if __name__ == "__main__":
 print(f"""{solution() = }""")








'''simple docstring'''

def _SCREAMING_SNAKE_CASE (A			)			->			bool:






       """simple docstring"""







       lowercase__      =					[int(A			) for i in ip_va_address.split('''.'''			) if i.isdigit()]
       return len(A			) == 4 and all(0 <= int(A			) <= 254 for octet in octets			)


if __name__ == "__main__":
 lowerCamelCase				:  Optional[Any]    		=      input().strip()
 lowerCamelCase				:  Union[str, Any]    		=      'valid' if is_ip_va_address_valid(ip) else 'invalid'
 print(f"""{ip} is a {valid_or_invalid} IP v4 address.""")




