#include <iostream>
#include <string>

bool check_palindrome(const std::string &seq) {
    std::string::const_iterator forw_it = seq.begin();
    std::string::const_iterator bacw_it = seq.end();
    bacw_it--;
    while (forw_it < bacw_it) {
        if (*forw_it != *bacw_it) {
            return false;
        }
        forw_it++;
        bacw_it--;
    }
    return true;
}

int main(int argc, char const *argv[])
{
    /* code */
    std::string seq;
    std::getline(std::cin, seq);
    std::string::iterator bacw_it = seq.end();
    std::cout << check_palindrome(seq) << std::endl;
    return 0;
}