040000 tree fcbe3769979b5d049f5c49505277513c2c74c4a9	area
040000 tree 1229039ca9926556635b677f5b65abf5670be452	impl
040000 tree 1841c120b7d4e32fc7b9c895bc9674f4a495ad07	lsdb
040000 tree 9f14fd95c71665d8609eacbfa93ea9215422ba15	util