def extract_arguments(fh):
    n = int(fh.readline().strip())
    points = []
    for _ in range(n):
        x, y = map(int, fh.readline().strip().split())
        points.append((x, y))
    return n, points

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