040000 tree 39fa79be866f027f9d022e3379faa6573638125e	acceptance
040000 tree 1da7d7b83dff145cf2675c1def816422e4f05588	backend
040000 tree 401102f23c38c6e042d187f55274b575ce9af907	restapi
040000 tree 1516d379c161c3963e731810c1ca25360110590b	util