Android Memory game for exam project

I will pay up to 30$ for the project. It is extremely simple, but needs to be done asap (in a day/two). This is for my school exam, so there is no need to be groundbreaking. TASK: Memory game app. No need to complicate!!! DESC: At the start of app, user have two buttons: PLAY or HIGHSCORE. The main play window has 4x4 grid with buttons (or whatever) hiding numbers. When user touches the button, it shows him the number and stay open. Then, user touch the other button - and it show him the other number. IF the number is the same as first, both stay open. IF it is different - both buttons are closed again after a sec or two. So, he continue opening... Clasical memory game. After finishing (when user opens all numbers) it gives him the text-box to enter his name. It saves his score (number of tries). So, in app, when users choose to view highscores - it gives a ranking list (lower number of tries is better of course). Need of course apk and full source. More details to the best bidder. Best one will be choses based on his offer and understanding of this task.