def list_cumulative_cases(filename):
    """
    Given filename of a file (specifying a country), containing daily cumulative cases, this function reads the file
    and makes and returns a list of cumulative cases for that filename.
    """
    lst = []
    with open(filename) as f:
        for line in f:
            lst.append(line.strip())
    for i in range(len(lst)):
        lst[i] = int(lst[i])
    return lst