import os


def read_file(filename):
    if not os.path.isfile(filename):
        return None
    file_content = ''
    with open(filename, 'r') as fd:
        for line in fd:
            file_content += line
    return file_content.strip()


def get_all_input_data(url):
    if os.path.isfile(url):
        return read_file(url)
    else:
        return None

c7d966c4047b268db72a25ba8b0a826f7a579e9e
<mask token>

<mask token>


def read_file(filename):
    if not os.path.isfile(filename):
        return None
    file_content = ''
    with open(filename, 'r') as fd:
        for line in fd:
            file_content += line
    return file_content.strip()


<mask token>

<mask token>


def read_file(filename):
    if not os.path.isfile(filename):
        return None
    file_content = ''
    with open(filename, 'r') as fd:
        for line in fd:
            file_content += line
    return file_content.strip()


def get_all_input_data(url):
    if os.path.isfile(url):
        return read_file(url)
    else:
        return None

import os


def read_file(filename):
    if not os.path.isfile(filename):
        return None
    file_content = ''
    with open(filename, 'r') as fd:
        for line in fd:
            file_content += line
    return file_content.strip()


def get_all_input_data(url):
    if os.path.isfile(url):
        return read_file(url)
    else:
        return None
