# -*- coding: utf-8 -*-
import re
def searchIp(txt):
pattern = re.compile(r'(?<![\.\d])(?:\d{1,3}\.){3}\d{1,3}(?![\.\d])')
match = pattern.search(txt)
if match:
print (match.group())
if __name__ == '__main__':
f = open("ip.txt", "r")
line = f.readline()
while True:
l = f.readline()
if not l: # no data
break;
else:
# print l
searchIp(l)
f.close()