價格：免費
更新日期：2015-11-02
檔案大小：2.2M
目前版本：1.1
版本需求：Android 4.0.3 以上版本
官方網站：mailto:levelxcode@gmail.com
Solve as many operations as you can before the time runs out! You got only 10 seconds, but you'll have a bonus time for every correct answer. Solve 10 operation to reset the timer.
