#include <iostream>
#include <string>
#include <fstream>

using namespace std;

int main() {
	string number = "";
	bool isPalindrome = false;

	cin >> number;

	if (number.length() <= 0) {
		cout << "error, length of number <= 0!";
		return -1;
	}
	else {
		for (unsigned short int i = 0; i < number.length() / 2; i++) {
			if (number[i] == number[number.length() - (i + 1)]) {
				isPalindrome = true;
			}
			else {
				isPalindrome = false;
				break;
			}
		}
	}

	ofstream outPut("output.txt");

	if (!outPut.is_open()) {
		cout << "error!";
		return -1;
	}
	else {
		if (true == isPalindrome) {
			outPut << "1";
		}
		else {
			outPut << "0";
		}

	}

	return 0;
}