100644 blob 04b73eb9de2d366b01441dae46ee69b525f40c4f	Calculator.java
100644 blob db2edb5be0399985b8a3cb22293e27194ce82221	TextProvider.java
040000 tree d4e7e15bf2a0107b11d462e072b7ff5a87a34f72	operations
040000 tree d86d8f7b9fde1730ea1b2ab94de98d4037230a03	ui