040000 tree 68ef2af39a2420eb61237c7961a355926e9d4bed	beans
040000 tree f81602c34859f82021e8ea90708cac178c548eb3	io
040000 tree fe4268d6aaea86fbf7558a1bdeb8fdb9d725ce50	lang
040000 tree 5c6fff895d59efd4d68c6b48b8216d06f51baee5	math
040000 tree 37d3097bf955c8382b5472b9d17be663ec8ddf2f	security
040000 tree 95f12a738334ac2212d8f754d7ed3389710bf970	sql
040000 tree f3a8f269e34f50e91f3dac6eb72e7069b7b2e7e1	text
040000 tree 7502772fe337eb719048c595b8e2e142a0918904	util