import re
str="""
dirty_datas127.0.0.1dsadsadasdasdas
dirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdasdirty_datas127.0.0.1dsadsadasdasdas

"""
ends=re.findall("(((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})(\.((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})){3})",str,re.S)
for end in ends:
	print(end[0])