#include <algorithm>
#include <codecvt>
#include <iostream>
#include <locale>
#include <string>

using namespace std;

int main()
{
    string s; cin >> s; // UTF-8

    wstring_convert<codecvt_utf8_utf16<wchar_t>> conv;
    wstring ws = conv.from_bytes(s);
    reverse(begin(ws), end(ws));
    string ans = conv.to_bytes(ws);

    cout << ans << '\n';

    return 0;
}