100644 blob d2842887a5f687b75ae89a4c4a660b85dc1b0aff	DataManagerInterface.java
100644 blob 9304fa5f46a726fa9f9855be9bf4f923ad7d685a	Database1.java
100644 blob 2e37a996184cf8425c84ac3bf1cc5fef423f7b07	Database2.java