def extract_arguments(fh):
    n = int(fh.readline().strip())
    a = list(map(int, fh.readline().strip().split()))
    return n, a

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