#include<bits/stdc++.h>
using namespace std;  
int main(){           
    string s;
    int i;
    getline(cin,s);
	for(i = s.length() - 1;i >= 0;i--)
	{
		cout<<s[i];
	}
	return 0;
}
/**************************************************************
	Problem: 1120
	User: admin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/