def extract_arguments(fh):
    inputs = []
    while True:
        n = int(fh.readline().strip())
        if n == 0:
            break
        s = list(map(int, fh.readline().strip().split()))
        inputs.append((n, s))
    return inputs

# if __name__ == "__main__":
#     input_path = sys.argv[1]
#     with open(input_path, 'r') as fh:
#         inputs = extract_arguments(fh)
#         f(inputs)