Fast method to take input separated by space [Golang]

why not just try something like

func main()  {
    scanner := bufio.NewScanner(os.Stdin)

    for scanner.Scan() {
        val, err := strconv.Atoi(scanner.Text())
        if err != nil {
            log.Fatal(err)
        }
        fmt.Println(val)
    }
}