#include<iostream>
#include <cstring>
#include <algorithm>
using namespace std;
 string s;

bool is_huiwen(string s)
{
    for(int i=0,j=s.size()-1;i<j;i++,j--)
    {
        if(s[i]!=s[j]) return false;
    }
    return true;
}
int main()
{
    cin>>s;
    if(is_huiwen(s)) cout<<"true"<<endl;
    else cout<<"false"<<endl;


    return 0;
}