#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (ll)(n); i++)
#define all(a) (a).begin(), (a).end()
using ll = long long;
const int INF32 = 2e9;
const ll INF64 = 4e18;

int main() {
    string S;
    cin >> S;
    string A="", B="";
    int i = 0;
    for(; i < S.size(); i++){
        if('0'<=S[i]&&S[i]<='9')break;
        A+=S[i];
    }
    for(; i < S.size(); i++){
        B+=S[i];
    }
    reverse(all(A));
    cout << A << B << endl;
    return 0;
}