This application is a game.
You touch all randomly arranged alphanumeric buttons in order as 1, A, 2, B, 3, C,,,.
You touch as quickly as possible.
Usage:
1.You touch "Start" button, then randomly arranged alphanumeric buttons appear and timer start.
2.You touch alphanumeric buttons in order as 1, A, 2, B, 3, C,,,.
If you touch correct button, that button color changes gray.
3.You touch all buttons, then timer stop and this game finishes.