/* package whatever; // don't place package name! */

import java.util.*;
class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		int i = 0; int j = s.length()-1;
		while(i < j){
			if(s.charAt(i) != s.charAt(j)){
				System.out.println(false);
				return;
			}
			i++;j--;
		}
		System.out.println(true);
	}
}