#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

int main() {
    string s;
    cin >> s;

    int i = 0;
    while (i < s.size() && isalpha(s[i])) {
        i++;
    }

    string a = s.substr(0, i);
    string b = s.substr(i);

    reverse(a.begin(), a.end());

    cout << a + b << endl;

    return 0;
}