def benchmark():
    setup = (
        "from __main__ import least_common_multiple_slow, least_common_multiple_fast"
    )
    print(
        "least_common_multiple_slow():",
        timeit("least_common_multiple_slow(1000, 999)", setup=setup),
    )
    print(
        "least_common_multiple_fast():",
        timeit("least_common_multiple_fast(1000, 999)", setup=setup),
    )