finditer in Python

import re

pattern = re.compile("\d+")
text = input()
all_matches = []
while True:
    if len(text) == 0:
        break
    matches = pattern.finditer(text)
    for match in matches:
        all_matches.append(match.group())
    text = input()

for element in all_matches:
    print(element, end=" ")



input:
The300
What is that?
I think it's the 3rd movie
Lets watch it at 22:45

output:
300 3 22 45