URI Online Judge | 1984

#include<bits/stdc++.h>
#include <iostream>
#include <fstream>
#include <string>
#include <algorithm>
#include <cmath>
#include <cstdio>
#define pi           acose(-1)
#define flush        cin.ignore(numeric_limits<streamsize>::max(),'\n');
#define fasterio     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define NL           printf("\n")
#define dot(x)       fixed << setprecision(x)
#define fin          freopen("int.txt","r",stdin);
#define fout         freopen("out.txt","w",stdout);

using namespace std;
typedef long long int ll;
typedef double dl;

// ---------------------- slove---------------------------//

int main()
{
  //fin
  //fout

  string s;
  getline(cin,s);
    reverse(s.begin(),s.end());
    cout<<s<<endl;
    return 0;
}
//author anikaksh;