package main

import (
	"fmt"
	"net"
)

func main() {
	// ip := net.ParseIP("192.168.168.12")
	ip := net.ParseIP("ghallsda")
	// ip := net.ParseIP("::1")
	fmt.Println(ip.To4(), ip.To16())
	fmt.Println(len(ip.To4()))

	fmt.Println()
}