import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String[] word ;
int i;
word = sc.nextLine().split("");
for(i=0;i<word.length/2;i++){
if(word[i].equals(word[(word.length-1)-i])){
continue;
}else break;
}
if(i==word.length/2){
System.out.println("1");
}else System.out.println("0");
}
}