The idea originated from the application developers who do not know the general account balance on a debit or credit, of the incident developers trying to make a mini-game that can help for my friends rote learning in accounting account with the subconscious and fun course. Come my friends invite others make use of this application.

Disclaimer
This application uses free asset is the icon of http://flaticon.com/ and letters free of http://www.1001fonts.com/ which is not the ownership of the developer.