




def 			lowerCamelCase_		(       UpperCamelCase__				:      str      )     ->       bool:





				"""simple docstring"""


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


if __name__ == "__main__":
					__A        =    input().strip()
					__A        =    "valid" if is_ip_va_address_valid(ip) else "invalid"
					print(f'''{ip} is a {valid_or_invalid} IP v4 address.''')








from math import sqrt







def 			lowerCamelCase_		(       UpperCamelCase__				:      int      )     ->       bool:





				"""simple docstring"""


				if 1 < number < 4:
								# 2 and 3 are primes
								return True
				elif number < 2 or number % 2 == 0 or number % 3 == 0:
								# Negatives, 0, 1, all even numbers, all multiples of 3 are not primes
								return False

				# All primes number are in format of 6k +/- 1
				for i in range(5 ,     int(sqrt(UpperCamelCase__      ) + 1      ) ,     6      ):
								if number % i == 0 or number % (i + 2) == 0:
												return False
				return True







def 			lowerCamelCase_		(       UpperCamelCase__				:      int = 1_0001      )     ->       int:





				"""simple docstring"""


				__lowerCamelCase		       =    0
				__lowerCamelCase		       =    1
				while count != nth and number < 3:
								number += 1
								if is_prime(UpperCamelCase__      ):
												count += 1
				while count != nth:
								number += 2
								if is_prime(UpperCamelCase__      ):
												count += 1
				return number


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


