#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	getline(cin,s);
	reverse(s.begin(),s.end());
	cout<<s;
}
/**************************************************************
	Problem: 1120
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/