加拿大算法公式软件网站简介：Jiang Sheng came to the elevator, and coincidentally, there was a waiter pushing a trash can in the elevator. It seemed inconspicuous, but Jiang Sheng found another card in the trash can.
Jiang Sheng came to the elevator, and coincidentally, there was a waiter pushing a trash can in the elevator. It seemed inconspicuous, but Jiang Sheng found another card in the trash can.
