040000 tree 6f975d8136a51a2b9f49115b3176c96c32e87e38	cpp
040000 tree 1221b649b1dafa04b4754c6d7c45587179b2e362	java
040000 tree aee3b5e4ebf97a7a915cdfcfc6b7e2e8b61f6b46	python
040000 tree d478a0becdc693f8c90af5c52c269616f5c77230	scala