This application belongs to software of intelligence well, and suitable for various age section. It comprises of 7 modes:normal, input for solution,limit rounds challenge,limit time challenge,5 card mode,Wifi challenge and best score.Basic usage is as follows:Make 4 numbers sent by system randomly combine to 24.If cannot combine successfully, please see answer generated by system.The software is easy and simple and is good for intelligence. 1. Performance optimization.
