def extract_arguments(fh):
    N = int(fh.readline().strip())
    queries = []
    for _ in range(N):
        q, x = map(int, fh.readline().strip().split())
        queries.append((q, x))
    return N, queries

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