#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    getline(cin,s);
    reverse(s.begin(),s.end());
    cout<<s;
}
/**************************************************************
	Problem: 1120
	User: HUANGYIBO
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/