This is a mobile magnetic arm algorithm procedures, he algorithm to simulate the lift operator, 111111111111111111.

这是一个磁臂移动的算法程序，他模拟电梯算法来运算的，111111111111111111。

youdao

The story has a number of variants, different people talking to a taxi driver, lift operator etc. The basic point is still valid though.

关于擦鞋男孩的这个故事有若干种不同版本，不同的人是在与出租车司机、电梯操作员等进行交谈时发现股市处于泡沫的，然而，其基本思路都是站得住脚的。

youdao

The weather has prompted train operator East Coast to lift ticket restrictions from London King's Cross on services after 10:00 GMT.

BBC: Snowfall prompts travel warning