#include <iostream>                                                                                                       
                                                                                                                          
using namespace std;                                                                                                      
                                                                                                                          
int main() {                                                                                                              
  string s;                                                                                                               
  while (cin >> s) {                                                                                                      
    for (int i = s.length() - 1; i >= 0; i--) {                                                                           
      cout << s[i];                                                                                                       
    }                                                                                                                     
    cout << endl;                                                                                                         
  }                                                                                                                       
}