def inner(*args):
    start = perf_counter()
    result = fn(*args)
    end = perf_counter()
    elapsed = (end - start)
    print(result)
    print('elapsed', elapsed)
def inner(*args):
    start = perf_counter()
    result = fn(*args)
    end = perf_counter()
    elapsed = (end - start)
    print(result)
    print('elapsed', elapsed)