040000 tree 6c16accf1f642d2d4cb0868f2cf300ce29bdc548	first-library
040000 tree 14bc2d1a30a87e93b5bc84357713b0dfbd621408	second-library
040000 tree 8a90cbc4e44a8ce589c7020a19ac41a5b1199bea	test-app