def get_updates(offset=None):
    while True:
        try:
            URL = url + 'getUpdates'
            if offset:
                URL += '?offset={}'.format(offset)

            res = requests.get(URL)
            while (res.status_code != 200 or len(res.json()['result']) == 0):
                sleep(1)
                res = requests.get(URL)
            print(res.url)
            return res.json()

        except:
            pass


def get_last(data):
    results = data['result']
    count = len(results)
    last = count - 1
    last_update = results[last]
    return last_update


def get_last_id_text(updates):
    last_update = get_last(updates)
    chat_id = last_update['message']['chat']['id']
    update_id = last_update['update_id']
    try:
        text = last_update['message']['text']
    except:
        text = ''
    return chat_id, text, update_id


def main():
    chat_id, text, update_id = get_last_id_text(get_updates())
    chat_id, text, update_id = start(chat_id)

    while text.lower() != 'y':
        sleep(1)
        text = 'начать!'
        menu(chat_id, text, update_id)
        chat_id, text, update_id = get_last_id_text(get_updates())
        text = end(chat_id, text, update_id)