#include <iostream>
#include <string>
#include <algorithm>
//#include <math.h>
using namespace std;
int main(){
string res;
cin>>res;
reverse(res.begin(), res.end());
cout<<res<<endl;
return 0;
}
#include <iostream>
#include <string>
#include <algorithm>
//#include <math.h>
using namespace std;
int main(){
string res;
cin>>res;
reverse(res.begin(), res.end());
cout<<res<<endl;
return 0;
}