# Write a function to check whether the given ip address is valid or not using regex.
import re

regex = """^(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.( 
			25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.( 
			25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.( 
			25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)$"""


def check_IP(Ip):
    if re.search(regex, Ip):
        return "Valid IP address"
    else:
        return "Invalid IP address"
