def import_list() -> list:
    """
    Read file and return list.

    :return: List of integers
    :rtype: list
    """
    file = open("../puzzle-input", "r")
    string_list = list(file.readlines())
    int_list = [int(i) for i in map(str.strip, string_list)]
    file.close()
    return int_list