modified:   Sudoku1/app/src/main/AndroidManifest.xml
	new file:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/AboutFragment.java
	new file:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/AudioControl.java
	new file:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/GameFragment.java
	modified:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/KeypadView.java
	modified:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/Main_Activity.java
	modified:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/PuzzleView.java
	modified:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/Sudoku.java
	new file:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/TimeControl.java
	new file:   Sudoku1/app/src/main/java/com/example/xiangyi/sudoku1/WelcomeFragment.java
	renamed:    Sudoku1/app/src/main/res/layout/main.xml -> Sudoku1/app/src/main/res/layout/welcome.xml