import java.util.Scanner; /** * @program: Leetcode * @Author: X.Q.X * @Date: 2021-08-04 11:36 */ public class Main { /** * 思路:ip转换为整数,判断数字是否属于内网地址对应的数字: * 10.0.0.0 - 10.255.255.255: 需要判断:10 * 127.0.0.0 - 127.255.255.255 需要判断:127 * 172.16.0.0 - 172.31.255.255 需要判断:17216 和 17231 * 192.168.0.0 - 192.168.255.255 需要判断:192168 */ public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.nextLine(); String[] str = s.split("\\."); int a = Integer.parseInt(str[0]); int b = Integer.parseInt(str[1]); if(a == 10 || a == 127 || (a == 172 && (b >= 16 && b < 32)) || (a == 192 && b == 168)) { System.out.println(1); } else { System.out.println(0); } } }