Crazy Calculator

Calculator has three mode:
1. Normal: it's a regular calculator
2. Crazy: Button color change and number incremented by one for each shake.
3. Super Crazy: Button color and position change and number increments by one for each shake.

Upon shaking, the color and position of the buttons will be changed and number displaying on board will be incremented by one

Super crazy mode is good for training brain by different position and color of calculator's button.
Also it's a good trick to get kids interested to math.