Please help to the beginer

[polo]

Hi all,
I am struggling with making
this code:

text = open('input.txt', 'r', encoding='utf8')
for i in text.readlines():
    print(re.findall('\S+e\S+', i))

to be functional:

text = open('input.txt', 'r', encoding='utf8')
map(lambda i: print(re.findall('[0-9]+', i)), text.readlines())

I can't understand why it doesn't work
Please advise,
Thanks