}

	r.Seek(-5, io.SeekEnd)
	if _, err := io.Copy(os.Stdout, r); err != nil {
		log.Fatal(err)
	}

	// Output:
	// io.Reader stream to be read
	// read
}

func ExampleMultiWriter() {
	r := strings.NewReader("some io.Reader stream to be read\n")

	var buf1, buf2 strings.Builder
	w := io.MultiWriter(&buf1, &buf2)

	if _, err := io.Copy(w, r); err != nil {
		log.Fatal(err)
	}