BAEKJOON_10988

import java.io.*;
import java.sql.Array;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        List<Character> list= new ArrayList<>();
        int result =1;
        String str= br.readLine();
        int size = str.length();
        for(int i=0; i<str.length(); i++){
            list.add(str.charAt(i));
        }



        for(int i=0; i<list.size(); i++){
            if(str.charAt(i) != list.get(size-i-1)){
                result =0;
            }
        }

        bw.write(String.valueOf(result));
        bw.flush();
        bw.close();

    }
}