File list (Check if you may need any files):
MySudoku\.classpath
........\.project
........\AndroidManifest.xml
........\bin\AndroidManifest.xml
........\...\classes\android\support\v7\appcompat\R$anim.class
........\...\.......\.......\.......\..\.........\R$attr.class
........\...\.......\.......\.......\..\.........\R$bool.class
........\...\.......\.......\.......\..\.........\R$color.class
........\...\.......\.......\.......\..\.........\R$dimen.class
........\...\.......\.......\.......\..\.........\R$drawable.class
........\...\.......\.......\.......\..\.........\R$id.class
........\...\.......\.......\.......\..\.........\R$integer.class
........\...\.......\.......\.......\..\.........\R$layout.class
........\...\.......\.......\.......\..\.........\R$string.class
........\...\.......\.......\.......\..\.........\R$style.class
........\...\.......\.......\.......\..\.........\R$styleable.class
........\...\.......\.......\.......\..\.........\R.class
........\...\.......\com\example\mysudoku\BuildConfig.class
........\...\.......\...\.......\........\MainActivity.class
........\...\.......\...\.......\........\R$anim.class
........\...\.......\...\.......\........\R$attr.class
........\...\.......\...\.......\........\R$bool.class
........\...\.......\...\.......\........\R$color.class
........\...\.......\...\.......\........\R$dimen.class
........\...\.......\...\.......\........\R$drawable.class
........\...\.......\...\.......\........\R$id.class
........\...\.......\...\.......\........\R$integer.class
........\...\.......\...\.......\........\R$layout.class
........\...\.......\...\.......\........\R$menu.class
........\...\.......\...\.......\........\R$string.class
........\...\.......\...\.......\........\R$style.class
........\...\.......\...\.......\........\R$styleable.class
........\...\.......\...\.......\........\R.class
........\...\jarlist.cache
........\...\R.txt
........\gen\android\support\v7\appcompat\R.java
........\...\com\example\mysudoku\BuildConfig.java
........\...\...\.......\........\R.java
........\ic_launcher-web.png
........\libs\android-support-v4.jar
........\proguard-project.txt
........\project.properties
........\res\drawable-hdpi\ic_launcher.png
........\...\.........mdpi\ic_launcher.png
........\...\.........xhdpi\ic_launcher.png
........\...\..........xhdpi\ic_launcher.png
........\...\layout\activity_main.xml
........\...\menu\main.xml
........\...\values\dimens.xml
........\...\......\strings.xml
........\...\......\styles.xml
........\...\......-v11\styles.xml
........\...\.........4\styles.xml
........\...\.......w820dp\dimens.xml
........\src\com\example\mysudoku\MainActivity.java
........\bin\classes\android\support\v7\appcompat
........\...\.......\.......\.......\v7
........\...\.......\com\example\mysudoku
........\gen\android\support\v7\appcompat
........\bin\classes\android\support
........\...\.......\com\example
........\gen\android\support\v7
........\...\com\example\mysudoku
........\src\com\example\mysudoku
........\bin\classes\android
........\...\.......\com
........\gen\android\support
........\...\com\example
........\src\com\example
........\bin\classes
........\...\res
........\gen\android
........\...\com
........\res\drawable-hdpi
........\...\drawable-ldpi
........\...\drawable-mdpi
........\...\drawable-xhdpi
........\...\drawable-xxhdpi
........\...\layout
........\...\menu
........\...\values
........\...\values-v11
........\...\values-v14
........\...\values-w820dp
........\src\com
........\assets
........\bin
........\gen
........\libs
........\res
........\src
MySudoku