#include <bits/stdc++.h>
//#include <atcoder/modint>

using namespace std;
//using namespace atcoder;
using ll = long long;
//using mint = modint998244353;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    string S, T="", U="";
    cin >> S;
    for (auto c : S){
        if ('0' <= c && c <= '9') U += c;
        else T += c;
    }
    for (auto c : views::reverse(T)) cout << c;
    cout << U << endl;

    return 0;
}