040000 tree abd17b36ef213b524c84b168d00870c685135b72	check
040000 tree 9fb55dcc8a3fff201325b0d2450bcee9f89a8247	examples
040000 tree 540a6edd65b58b193bc48f486d31b8714e246450	fixedbugs
100644 blob 25e6f22f94b7336cd60ae59e226f047856476e01	manual.go2