import re
import os

def find_digits(file_path):
    with open(file_path, 'r', encoding='utf-8') as file:
        txt  = file.read()
    pattern = re.compile(r'\d+')
    return pattern.findall(txt)



path = os.path.join(os.path.dirname(__file__), 'simple.in')
matches = find_digits(path)
print(matches)