040000 tree a4dbfbcf6bfa6373c1fe461457758ba4c37b637a	CL
040000 tree 3cf83122d20f7fc65409cb61fddabf23416932fc	half
040000 tree 28381951c5cb457cb98c75bfb385718ccf0e13a6	libnpy
040000 tree 13b484c41263e38d9c0245245caeca9b388ed782	stb