백준 1259

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import java.util.*;

public class Main {

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));





    while(true)
    {
        String N = br.readLine();

        if ( Integer.parseInt(N) == 0)
        {
            break;
        }

        char[] spell = new char[N.length()+1];

        for (int i = 0 ; i < N.length(); i++)
        {
            spell[i] = N.charAt(i);
        }

        boolean real = true;
        for (int i = 0 ; i < N.length(); i++)
        {
            if (spell[i] == spell[N.length()-1-i]){
                real = true;
            }
            else {
                real = false;
                break;
            }
        }

        if (real){
            System.out.println("yes");
        }
        else{
            System.out.println("no");
        }




        }







    }









}

실버 문제풀다가 브론즈 문제를 푸니 천사같다..